和音
A chord is when you play several musical notes at the same time.
Explanation at your level:
Hello! Today we learn the word 'chord'. A chord is when you play music notes together. Like when you play a piano and press more than one key at the same time. It makes a nice sound! You can play chords on a guitar too. It helps make songs sound full and happy. We use 'chord' for music. It is a thing, a noun. You can have one chord or many chords.
The word 'chord' is used in music. It means playing three or more musical notes at the same time. This creates a harmony, which is a pleasant sound. For example, when a guitarist plays a song, they often use different chords. Learning chords is a basic step for anyone who wants to play an instrument like the piano or guitar. You can talk about 'major chords' which sound happy, or 'minor chords' which can sound a bit sad.
A 'chord' is a fundamental concept in music, referring to a combination of three or more notes sounded simultaneously. These notes blend together to create harmony, adding richness and depth to musical pieces. Musicians often learn to play various types of chords, such as major chords (often associated with bright or happy feelings) and minor chords (often associated with sad or melancholic feelings). Understanding chord progressions, which are sequences of chords, is essential for composing or performing songs.
In music theory, a 'chord' represents a harmonic unit formed by the simultaneous sounding of multiple pitches, typically three or more. The specific combination of notes within a chord determines its quality, leading to classifications like major, minor, diminished, and augmented chords, each conveying distinct emotional or tonal characteristics. The study of chords and their relationships, known as harmony, is crucial for understanding musical structure, composition, and performance across various genres.
A 'chord' is a polyphonic element in music, comprising a set of simultaneous pitches that function as a harmonic entity. The tertian system, based on stacking intervals of thirds, is foundational to Western harmony, generating common chord types such as triads (major, minor, diminished, augmented) and seventh chords. The arrangement and progression of chords create the harmonic fabric of a musical work, influencing its emotional trajectory and structural coherence. Understanding chord function within a key is paramount for analyzing and composing music effectively.
The term 'chord' denotes a confluence of distinct pitches sounded concurrently, constituting a fundamental unit of harmonic structure. Historically, the development of chordal harmony, particularly the prevalence of triads derived from thirds, reflects a significant evolution in Western musical practice. Beyond simple triads, complex chords incorporating added tones and alterations (e.g., ninth, eleventh, thirteenth chords) offer expanded harmonic palettes. The analysis of chordal relationships, including voice leading and harmonic function within tonal, modal, or atonal frameworks, provides deep insights into musical composition and aesthetic expression across diverse historical periods and stylistic traditions.
Word in 30 Seconds
- A chord is a group of musical notes played together.
- It creates harmony and adds richness to music.
- Common types include major (happy) and minor (sad) chords.
- The idiom 'strike a chord' means to evoke emotion.
Hey there! Let's dive into the wonderful world of chords. You know how sometimes you hear music and it just sounds so full and rich? A big part of that is thanks to chords! A chord is basically a group of musical notes that sound really good when they're played together at the same time. Think of it like a musical recipe where different notes come together to create a special flavor.
Musicians use chords to build the harmony in songs, giving them depth and emotion. Whether it's a simple happy tune or a dramatic symphony, chords are the building blocks that make the music feel complete. They can be simple, like just two notes, or complex with many notes stacked on top of each other. Understanding chords is super important if you're learning to play an instrument or sing!
The word 'chord' has a fascinating journey through history! It comes from the Latin word 'chorda', which means 'string'. This makes sense, right? Think about early stringed instruments like lutes or harps. When you pluck a string, it produces a note. When you play multiple strings together, you're creating a sound that's like a 'string' of notes.
Over time, the meaning evolved. In the 17th century, the term 'chord' started being used specifically in music to describe the simultaneous sounding of several notes. Before that, people might have used terms like 'concord' or 'harmony' to describe similar musical ideas. The evolution from a physical 'string' to a collection of 'notes' played together shows how language adapts to describe new concepts and artistic developments. It’s a beautiful example of how words can change and grow with human creativity!
So, how do we actually use the word 'chord' in everyday conversation and writing? It's pretty straightforward! You'll most often hear it in discussions about music. For example, someone might say, 'The guitarist played a beautiful major chord.' Or, 'I'm learning to play a few simple chords on the piano.'
We often use it with adjectives to describe the type of chord, like 'major chord', 'minor chord', 'diminished chord', or 'suspended chord'. You can also talk about 'playing a chord', 'strumming a chord', or 'hearing a chord'. When talking about learning music, you might hear phrases like 'learning basic chords' or 'practicing chord progressions'. It's a versatile word in the musical vocabulary!
While 'chord' itself is a musical term, it has inspired some really cool idioms and expressions that go beyond music! Let's explore a few:
- Strike a chord: This means to evoke a feeling, memory, or emotion in someone. It's like a musical chord resonating with your feelings. Example: Her story about overcoming adversity really struck a chord with the audience.
- Strike the right chord: Similar to the above, but specifically means to say or do something that is appropriate and pleasing to a particular person or group. Example: The politician's speech struck the right chord with the voters.
- Chord of honor: This is a less common phrase, referring to a promise or agreement that is considered sacred or unbreakable, like a solemn vow. Example: He gave his chord of honor that he would return the money.
- Go down well with (someone): While not directly using 'chord', this idiom implies that something (like a speech or an idea) resonates well, much like a chord that sounds pleasing. Example: The new policy proposal is expected to go down well with the employees.
Let's break down the grammar and pronunciation of 'chord'. As a noun, it's a regular word. The plural form is simply 'chords'. So, you'd say 'one chord' and 'many chords'. It's a countable noun, so we can use articles like 'a' or 'the' with it, as in 'a chord' or 'the chord'.
Pronunciation-wise, it can be a bit tricky because of the silent 'b' in related words like 'cord'. But for 'chord', the 'ch' makes a /k/ sound, like in 'school', and the 'ord' sounds like 'ord' in 'lord'.
- British English IPA: /kɔːd/
- American English IPA: /kɔːrd/
- Sounds like: It rhymes with words like 'lord', 'board', and 'sword'.
- Stress pattern: It's a single-syllable word, so the stress is on that one syllable.
Common pronunciation mistakes might include trying to pronounce the 'ch' like in 'chair', but remember, it's a /k/ sound here! Also, don't add an extra syllable; it's just one sound.
Fun Fact
The word 'chord' evolved from 'chorda' (Latin for string), likely influenced by the idea of strings on instruments producing notes that could be played together.
Pronunciation Guide
Starts with a 'k' sound, followed by the 'or' sound as in 'lord', ending with a 'd' sound.
Similar to UK, with a slightly more pronounced 'r' sound at the end, as in 'board'.
Common Errors
- Pronouncing 'ch' as /tʃ/ instead of /k/.
- Adding an extra syllable at the end.
- Confusing the pronunciation with 'cord'.
Rhymes With
Difficulty Rating
easy/hard to read
easy/hard to write
easy/hard to say
easy/hard to hear
What to Learn Next
Prerequisites
Learn Next
Advanced
Grammar to Know
Countable Nouns
'Chord' is countable: 'a chord', 'two chords'.
Adjective Order
We often place adjectives describing the chord type before the word: 'a major chord', 'a dissonant chord'.
Verb Tenses
Past tense: 'He played a chord.' Present tense: 'She plays chords.'
Examples by Level
I play a chord on the piano.
I / play / a / chord / on / the / piano.
'a chord' means one chord.
The guitar has many chords.
The / guitar / has / many / chords.
'chords' is the plural form.
This chord sounds nice.
This / chord / sounds / nice.
'sounds' is a verb here.
Can you play that chord again?
Can / you / play / that / chord / again?
Asking a question.
A chord is music.
A / chord / is / music.
'is' connects the subject and description.
He learned a new chord.
He / learned / a / new / chord.
'learned' is the past tense of learn.
Listen to the chord.
Listen / to / the / chord.
'the chord' refers to a specific chord.
Music has chords.
Music / has / chords.
'chords' is plural here.
The pianist played a beautiful chord progression.
The / pianist / played / a / beautiful / chord / progression.
'chord progression' is a common musical term.
Learning basic chords is essential for guitarists.
Learning / basic / chords / is / essential / for / guitarists.
'is essential' means very important.
A major chord usually sounds happy.
A / major / chord / usually / sounds / happy.
'major chord' is a specific type of chord.
He found it difficult to finger the correct chord.
He / found / it / difficult / to / finger / the / correct / chord.
'finger a chord' means to place fingers correctly.
The song features a simple C major chord.
The / song / features / a / simple / C / major / chord.
'C major' specifies the chord.
She enjoys experimenting with different chord voicings.
She / enjoys / experimenting / with / different / chord / voicings.
'chord voicings' refers to how notes are arranged.
The band's sound is characterized by rich, layered chords.
The / band's / sound / is / characterized / by / rich, / layered / chords.
'characterized by' means defined by.
Can you show me how to play that chord?
Can / you / show / me / how / to / play / that / chord?
Direct request for instruction.
The composer skillfully wove intricate chord progressions throughout the symphony.
The / composer / skillfully / wove / intricate / chord / progressions / throughout / the / symphony.
'skillfully wove' implies expert creation.
Understanding the function of each chord within a key is crucial for harmonic analysis.
Understanding / the / function / of / each / chord / within / a / key / is / crucial / for / harmonic / analysis.
'harmonic analysis' is a music theory term.
Minor chords often evoke a sense of melancholy or introspection.
Minor / chords / often / evoke / a / sense / of / melancholy / or / introspection.
'evoke' means to bring to mind.
The jazz trio improvised a complex series of altered chords.
The / jazz / trio / improvised / a / complex / series / of / altered / chords.
'altered chords' are chords with modified notes.
He found that practicing simple chord shapes repeatedly helped him build finger strength.
He / found / that / practicing / simple / chord / shapes / repeatedly / helped / him / build / finger / strength.
'repeatedly' means doing something many times.
The song's emotional impact is largely due to its poignant chord choices.
The / song's / emotional / impact / is / largely / due / to / its / poignant / chord / choices.
'poignant' means evoking sadness or regret.
She explained how different chord inversions can alter the feel of a piece.
She / explained / how / different / chord / inversions / can / alter / the / feel / of / a / piece.
'chord inversions' are different arrangements of the same notes.
The guitarist demonstrated a unique way to strum a G major chord.
The / guitarist / demonstrated / a / unique / way / to / strum / a / G / major / chord.
'demonstrated' means showed how.
The harmonic language of the piece relies heavily on dissonant chords and unexpected resolutions.
The / harmonic / language / of / the / piece / relies / heavily / on / dissonant / chords / and / unexpected / resolutions.
'dissonant chords' create tension.
Understanding modal interchange allows musicians to borrow chords from parallel keys, adding color.
Understanding / modal / interchange / allows / musicians / to / borrow / chords / from / parallel / keys, / adding / color.
'modal interchange' is an advanced harmonic technique.
The composer's use of polychords, where two different chords are played simultaneously, creates a rich, complex texture.
The / composer's / use / of / polychords, / where / two / different / chords / are / played / simultaneously, / creates / a / rich, / complex / texture.
'polychords' are chords made of multiple chords.
She analyzed the song's structure, noting how the chord progression created a sense of forward momentum.
She / analyzed / the / song's / structure, / noting / how / the / chord / progression / created / a / sense / of / forward / momentum.
'forward momentum' implies a driving force.
The subtle shifts in chord quality from major to minor subtly altered the emotional landscape of the narrative.
The / subtle / shifts / in / chord / quality / from / major / to / minor / subtly / altered / the / emotional / landscape / of / the / narrative.
'emotional landscape' refers to the range of feelings.
His improvisational solos often featured extended chords and chromatic passing tones.
His / improvisational / solos / often / featured / extended / chords / and / chromatic / passing / tones.
'extended chords' have notes beyond the basic triad.
The arrangement deliberately used sparse instrumentation to emphasize the clarity of each individual chord.
The / arrangement / deliberately / used / sparse / instrumentation / to / emphasize / the / clarity / of / each / individual / chord.
'sparse instrumentation' means few instruments.
The teacher explained the concept of negative harmony, where chords are reflected around a central axis.
The / teacher / explained / the / concept / of / negative / harmony, / where / chords / are / reflected / around / a / central / axis.
'negative harmony' is a theoretical concept.
The composer's innovative use of quartal harmony, built on intervals of fourths rather than thirds, challenged conventional tonal expectations.
The / composer's / innovative / use / of / quartal / harmony, / built / on / intervals / of / fourths / rather / than / thirds, / challenged / conventional / tonal / expectations.
'quartal harmony' is harmony based on fourths.
Analyzing the harmonic function requires understanding voice leading principles and potential modulations.
Analyzing / the / harmonic / function / requires / understanding / voice / leading / principles / and / potential / modulations.
'voice leading' refers to how individual melodic lines move.
The piece deliberately employed chromatic mediants to create surprising harmonic shifts.
The / piece / deliberately / employed / chromatic / mediants / to / create / surprising / harmonic / shifts.
'chromatic mediants' are chords a third apart with different qualities.
The advent of serialism fundamentally altered the perception and construction of chords in the 20th century.
The / advent / of / serialism / fundamentally / altered / the / perception / and / construction / of / chords / in / the / 20th / century.
'serialism' is a compositional technique.
She explored the psychoacoustic effects of different chord voicings on listener perception.
She / explored / the / psychoacoustic / effects / of / different / chord / voicings / on / listener / perception.
'psychoacoustic' relates to the psychology of sound.
The fugue's intricate counterpoint often resulted in moments of polytonality, where multiple tonal centers coexist.
The / fugue's / intricate / counterpoint / often / resulted / in / moments / of / polytonality, / where / multiple / tonal / centers / coexist.
'polytonality' means multiple keys at once.
The analysis revealed a sophisticated use of upper-structure triads to enrich the fundamental chord.
The / analysis / revealed / a / sophisticated / use / of / upper-structure / triads / to / enrich / the / fundamental / chord.
'upper-structure triads' are chords built on higher notes of a complex chord.
His compositional style was marked by a penchant for dense harmonic textures and unconventional chord resolutions.
His / compositional / style / was / marked / by / a / penchant / for / dense / harmonic / textures / and / unconventional / chord / resolutions.
'penchant for' means a strong liking for.
The theoretical framework of Schenkerian analysis posits that underlying harmonic structures, often simplified chords, underpin surface complexities.
The / theoretical / framework / of / Schenkerian / analysis / posits / that / underlying / harmonic / structures, / often / simplified / chords, / underpin / surface / complexities.
'Schenkerian analysis' is a method of musical analysis.
Investigating the historical evolution of chordal language reveals a gradual expansion from simple consonances to complex dissonances.
Investigating / the / historical / evolution / of / chordal / language / reveals / a / gradual / expansion / from / simple / consonances / to / complex / dissonances.
'consonances' are pleasing sound combinations.
The philosophical underpinnings of atonality questioned the very necessity of chords as organizing principles.
The / philosophical / underpinnings / of / atonality / questioned / the / very / necessity / of / chords / as / organizing / principles.
'atonality' means music without a key center.
His doctoral research focused on the reinterpretation of Baroque figured bass as complex extended chords.
His / doctoral / research / focused / on / the / reinterpretation / of / Baroque / figured / bass / as / complex / extended / chords.
'figured bass' is a notation system.
The study examined the cross-cultural prevalence of specific harmonic intervals and their resultant chordal implications.
The / study / examined / the / cross-cultural / prevalence / of / specific / harmonic / intervals / and / their / resultant / chordal / implications.
'cross-cultural prevalence' means how common something is across cultures.
The analysis of late Romantic harmony often involves deciphering dense chromaticism and non-functional chords.
The / analysis / of / late / Romantic / harmony / often / involves / deciphering / dense / chromaticism / and / non-functional / chords.
'chromaticism' involves using notes outside the key.
The theoretical debate surrounding the definition of consonance and dissonance continues to inform our understanding of chordal perception.
The / theoretical / debate / surrounding / the / definition / of / consonance / and / dissonance / continues / to / inform / our / understanding / of / chordal / perception.
'chordal perception' is how we hear and interpret chords.
He proposed a novel system for classifying chords based on their spectral content rather than traditional tertian structures.
He / proposed / a / novel / system / for / classifying / chords / based / on / their / spectral / content / rather / than / traditional / tertian / structures.
'spectral content' refers to the frequencies within a sound.
Common Collocations
Idioms & Expressions
"strike a chord"
To evoke a feeling, memory, or emotion in someone; to resonate with someone.
The nostalgic song struck a chord with many listeners who remembered their youth.
neutral"strike the right chord"
To say or do something that is appropriate and pleasing to a particular person or group.
Her speech about community values struck the right chord with the local residents.
neutral"strike a sour chord"
To say or do something that is inappropriate, offensive, or causes discomfort.
His insensitive joke struck a sour chord with the audience.
neutral"chord of honor"
A solemn promise or pledge that is considered unbreakable; a vow.
He gave his chord of honor that he would protect the secret.
formal"go down well with"
To be received favorably by someone; to be popular or pleasing.
The new policy proposal seems to be going down well with the employees.
neutral"hit the right note"
Similar to 'strike the right chord', meaning to do or say something that is exactly right for the situation.
The presenter really hit the right note when discussing the company's future.
neutralEasily Confused
Similar pronunciation and spelling.
'Chord' is specifically for music (a group of notes). 'Cord' refers to a string, rope, or a nerve.
The guitarist tuned his instrument using a new electronic tuner, while the power cord for the amplifier lay on the floor. The musician played a beautiful C major chord.
Closely related concepts in music.
'Chord' is a specific set of simultaneous notes. 'Harmony' is the broader study of how notes and chords sound together and progress.
The choir sang in perfect harmony, with each voice part contributing to the overall sound. The progression of chords created a lovely harmonic texture.
Both are fundamental elements of music.
'Melody' is a sequence of single notes forming a tune. 'Chord' is multiple notes played at the same time for harmony.
The singer performed the main melody, while the piano provided the underlying chord accompaniment.
Chords are made up of notes.
'Note' is a single musical pitch. A 'chord' is a combination of multiple notes played together.
Each note in the chord contributed to its unique sound. The composer carefully selected each note.
Sentence Patterns
Subject + verb + a/the + adjective + chord
She played a beautiful major chord.
Subject + verb + adjective + chords
The music featured complex chords.
Verb + a/the + chord
Learn this chord.
Subject + verb + chord + noun
He analyzed the chord progression.
Idiom: Verb + a/the + chord
His story struck a chord with the audience.
Word Family
Nouns
Adjectives
Related
How to Use It
Formality Scale
Common Mistakes
The 'ch' in 'chord' is a digraph that represents the /k/ sound, not the /tʃ/ sound.
'Chord' is a one-syllable word. Avoid adding sounds like '-ed' or '-id'.
They sound similar but have different spellings and meanings. 'Cord' has a silent 'r' sound in some contexts (like 'power cord'), but 'chord' is pronounced /kɔːrd/.
While related, 'chord' is a specific musical entity, whereas 'harmony' can be broader.
Major chords often sound happy, but minor chords can sound sad, and other chords have their own unique feelings.
Tips
Sound it Out!
Try playing a few notes together on an instrument or using an online keyboard. Listen to how they blend. This direct experience helps solidify the meaning of 'chord'.
Listen Actively
When listening to music, try to identify when chords are being played. Notice how different chords (major, minor) make you feel. This active listening will improve your understanding.
The 'Strike a Chord' Connection
Remember the idiom 'strike a chord' by imagining a musical chord hitting an emotional 'note' within you. This links the musical term to its figurative meaning.
Plural Power
Just add an 's' to make it plural: one chord, many chords. Easy peasy!
The 'K' Sound is Key
Don't forget the 'ch' in 'chord' sounds like 'k' (like in 'key'). Practice saying 'kord' until it feels natural.
Avoid the 'Cord' Confusion
Remember: Music = Chord (with 'ch'). Rope/String = Cord (with 'c'). Keep them separate!
From Strings to Sounds
The word 'chord' originally meant 'string'! It's a cool reminder of how musical instruments work.
Chord Flashcards
Create flashcards with chord names (e.g., C major) on one side and their diagrams or sounds on the other. Test yourself regularly.
Genre Matters
Notice how chords are used differently in various music genres. Jazz often uses more complex chords than simple folk songs.
Try a Chord App
There are many apps that show you how to play chords on guitar or piano. Experimenting is a great way to learn!
Memorize It
Mnemonic
Think of a 'CH'oice of notes that sound good together, like a choir singing in CHord.
Visual Association
Imagine a harp with multiple strings plucked at once, creating a beautiful sound.
Word Web
Challenge
Try humming a simple melody, then hum a few notes underneath it that sound good together. That's you creating a chord!
Word Origin
Latin
Original meaning: String
Cultural Context
No significant cultural sensitivity issues associated with the word 'chord' itself.
In English-speaking cultures, 'chord' is a fundamental term in music education and appreciation. It's used across genres from classical to pop.
Practice in Real Life
Real-World Contexts
Learning a musical instrument (guitar, piano)
- How do I play this chord?
- Practice these basic chords.
- What's the next chord in the progression?
Music Performance
- Let's hit that chord together.
- The final chord was held for a long time.
- The harmony created by the chords was stunning.
Music Theory/Analysis
- Analyze the function of this chord.
- The chord progression follows a standard pattern.
- Identify the type of chord used here.
Figurative Language
- That idea really struck a chord with me.
- His comment didn't strike the right chord.
- Her speech struck a chord with the voters.
Conversation Starters
"What's your favorite chord to play or hear?"
"Do you think major chords always sound happy?"
"If you could invent a new type of chord, what would it sound like?"
"How important do you think chords are in making a song memorable?"
"Have you ever heard a chord that instantly changed your mood?"
Journal Prompts
Describe a time a song's chords made you feel a strong emotion.
If 'chord' were a color, what color would it be and why?
Write a short story where the phrase 'strike a chord' plays a central role.
Imagine you are teaching someone about chords for the first time. What are the key things you would explain?
Frequently Asked Questions
8 questionsA melody is a sequence of single notes played one after another, forming the main tune. A chord is a group of notes played simultaneously to create harmony.
Typically, a chord has at least three notes. However, some chords can be formed with just two notes (dyads), and complex chords can have four or more notes.
Most common chords in Western music (like major and minor triads) are built by stacking intervals of thirds. However, other types of harmony, like quartal harmony (based on fourths), exist.
A chord progression is a series of chords played in sequence, forming the harmonic basis of a piece of music.
Yes, sometimes two notes played together can function as a chord, especially in certain musical contexts or when implying a fuller harmony. These are often called dyads.
The difference lies in the third note of the chord. A major chord typically sounds happy or bright, while a minor chord often sounds sad or melancholic.
Primarily, yes. However, the idiom 'strike a chord' is used in general conversation to mean evoking an emotional response.
If you're learning an instrument like guitar or piano, start with basic major and minor chords. Practice switching between them smoothly and learn common chord progressions.
Test Yourself
When you play music notes at the same time, it's called a ____.
A chord is defined as multiple notes played together.
Which of these is a type of chord?
Major chords are a standard classification of chords in music.
A chord consists of only one musical note.
A chord is made up of three or more notes played simultaneously.
Word
Meaning
These pairs match musical terms with their definitions.
The correct sentence is 'The song's chord progression featured an interesting one.'
The composer used ____ chords to create a sense of unease.
Dissonant chords typically create feelings of tension or unease.
Which term refers to the arrangement of notes within a chord?
Voicing specifically refers to how the notes of a chord are arranged.
The term 'chord' historically referred only to consonant musical intervals.
The definition and perception of chords have evolved significantly, including dissonant combinations.
A ____ chord often sounds sad.
Minor chords are commonly associated with sad or melancholic feelings.
What does 'strike a chord' mean?
'Strike a chord' is an idiom meaning to resonate emotionally with someone.
Score: /10
Summary
Chords are the harmonic building blocks that give music its emotional depth and richness.
- A chord is a group of musical notes played together.
- It creates harmony and adds richness to music.
- Common types include major (happy) and minor (sad) chords.
- The idiom 'strike a chord' means to evoke emotion.
Sound it Out!
Try playing a few notes together on an instrument or using an online keyboard. Listen to how they blend. This direct experience helps solidify the meaning of 'chord'.
Listen Actively
When listening to music, try to identify when chords are being played. Notice how different chords (major, minor) make you feel. This active listening will improve your understanding.
The 'Strike a Chord' Connection
Remember the idiom 'strike a chord' by imagining a musical chord hitting an emotional 'note' within you. This links the musical term to its figurative meaning.
Plural Power
Just add an 's' to make it plural: one chord, many chords. Easy peasy!
Related Content
This Word in Other Languages
More music words
リズム
A2A strong, regular, repeated pattern of movement or sound.
作曲家
A2A person who writes music.
歌詞
A2The words of a song.
調子
A2Musical key or tune; also general condition or mood.
観客
A2People who watch a performance or event.
拍手する
A2To applaud, to clap.
ステージ
A2A raised platform in a theater or concert hall.
録音する
A2To record sound.
テンポ
A2The speed at which a piece of music is played.
調整する
A2To adjust, to regulate.