The Online Metronome

    Musical Dictionary

    The most common musical terms defined. Search through 146+ terms covering music theory, instruments, dynamics, and more.

    Showing 146 of 146 terms

    A

    A cappella

    Musical Term

    Singing without instrumental accompaniment, typically performed by a choir or vocal group.

    Accelerando

    Tempo Marking

    A gradual increase in tempo, often used to build excitement or tension in a piece.

    Accent

    Articulation

    Emphasis placed on a particular note or beat, making it stand out from the surrounding notes.

    Accidental

    Music Theory

    A symbol (sharp, flat, or natural) that alters the pitch of a note from its standard value in the key signature.

    Adagio

    Tempo Marking

    A slow tempo, typically between 66-76 BPM, often used for expressive, lyrical passages.

    Allegro

    Tempo Marking

    A fast, lively tempo, typically between 120-168 BPM, often used for energetic movements.

    Alto

    Vocal Range

    The lowest female voice type or the second highest part in choral music, typically ranging from F3 to F5.

    Andante

    Tempo Marking

    A moderate walking tempo, typically between 76-108 BPM, suggesting a relaxed but steady pace.

    Arpeggio

    Music Theory

    The notes of a chord played in succession rather than simultaneously, creating a harp-like effect.

    B

    C

    Cadence

    Music Theory

    A sequence of chords that brings a phrase or piece to a close, creating a sense of resolution.

    Canon

    Musical Form

    A composition where a melody is imitated by one or more voices at fixed intervals, like 'Row, Row, Row Your Boat'.

    Chord

    Music Theory

    Three or more notes sounded together in harmony.

    Chromatic

    Music Theory

    Moving by half steps, or relating to a scale containing all twelve pitches within an octave.

    Clef

    Musical Symbol

    A symbol at the beginning of a staff indicating the pitch of the notes on the lines and spaces.

    Coda

    Musical Form

    A concluding passage that brings a piece to a satisfying end, often marked with a coda symbol (𝄌).

    Common Time

    Music Theory

    A time signature of 4/4, indicated by a 'C' symbol, with four quarter-note beats per measure.

    Counterpoint

    Music Theory

    The technique of combining two or more melodic lines in a harmonically interdependent relationship.

    Crescendo

    Dynamic Marking

    A gradual increase in volume, often indicated by a widening wedge symbol (<).

    D

    Da Capo (D.C.)

    Music Marking

    An instruction to return to the beginning of the piece and play again.

    Dal Segno (D.S.)

    Music Marking

    An instruction to return to the segno sign (𝄋) and continue playing from there.

    Decrescendo

    Dynamic Marking

    A gradual decrease in volume, also called diminuendo, often indicated by a narrowing wedge symbol (>).

    Diatonic

    Music Theory

    Relating to a standard major or minor scale without chromatic alterations.

    Diminuendo

    Dynamic Marking

    A gradual decrease in volume, synonymous with decrescendo.

    Dolce

    Style Marking

    A direction to play sweetly and softly, with a gentle, tender expression.

    Dotted Note

    Music Theory

    A note with a dot beside it, extending its duration by half of its original value.

    Downbeat

    Music Theory

    The first beat of a measure, typically the strongest beat, where the conductor's hand moves downward.

    Drone

    Musical Term

    A sustained note or chord that continues throughout a passage or piece, often in the bass.

    Duet

    Ensemble

    A composition for two performers, either vocalists or instrumentalists.

    Dynamics

    Musical Term

    The varying levels of volume in music, from very soft (pianissimo) to very loud (fortissimo).

    E

    F

    G

    H

    I

    K

    L

    M

    Major

    Music Theory

    A scale or chord quality characterized by a specific pattern of whole and half steps, typically sounding bright or happy.

    Marcato

    Articulation

    A style of playing notes with strong emphasis and separation, more pronounced than regular accents.

    Measure

    Music Theory

    A segment of music containing a specified number of beats, same as a bar.

    Melody

    Music Theory

    A sequence of single notes that form a recognizable musical phrase or tune.

    Metronome

    Musical Term

    A device that produces regular ticks or beats at a specified tempo, used for practice.

    Mezzo Forte (mf)

    Dynamic Marking

    A dynamic marking indicating moderately loud volume, between piano and forte.

    Mezzo Piano (mp)

    Dynamic Marking

    A dynamic marking indicating moderately soft volume, between pianissimo and mezzo forte.

    Mezzo-Soprano

    Vocal Range

    A female voice type between soprano and alto, typically ranging from A3 to A5.

    Minor

    Music Theory

    A scale or chord quality characterized by a lowered third degree, typically sounding sad or dark.

    Moderato

    Tempo Marking

    A moderate tempo, typically between 108-120 BPM, neither too fast nor too slow.

    Modulation

    Music Theory

    The process of changing from one key to another within a piece of music.

    Motif

    Musical Term

    A short musical idea or phrase that recurs throughout a composition, serving as a building block.

    N

    O

    P

    Percussion

    Instrument

    Instruments played by striking, shaking, or scraping, including drums, cymbals, and xylophone.

    Phrase

    Music Theory

    A musical sentence, a coherent group of notes forming a distinct unit within a larger piece.

    Pianissimo (pp)

    Dynamic Marking

    A dynamic marking indicating very soft volume.

    Piano

    Instrument

    A keyboard instrument where strings are struck by hammers when keys are pressed.

    Piano (p)

    Dynamic Marking

    A dynamic marking indicating soft volume.

    Pitch

    Music Theory

    The perceived frequency of a sound, determining how high or low a note sounds.

    Pizzicato

    Articulation

    A technique where string players pluck the strings with their fingers instead of using the bow.

    Polyphony

    Music Theory

    Music consisting of two or more independent melodic lines sounding simultaneously.

    Presto

    Tempo Marking

    A very fast tempo, typically between 168-200 BPM, often used for exciting finales.

    Q

    R

    Rallentando

    Tempo Marking

    A gradual slowing down of tempo, similar to ritardando.

    Register

    Musical Term

    A specific range of pitches, such as high, middle, or low register of an instrument or voice.

    Repeat Sign

    Musical Symbol

    A symbol (𝄆 𝄇) indicating that a section of music should be played again.

    Rest

    Musical Symbol

    A symbol indicating silence for a specific duration, corresponding to note values.

    Rhythm

    Music Theory

    The pattern of durations of notes and rests in music, creating its temporal structure.

    Ritardando

    Tempo Marking

    A gradual slowing down of tempo, often used at the end of phrases or pieces.

    Root

    Music Theory

    The fundamental note upon which a chord is built, giving the chord its name.

    Rubato

    Style Marking

    A flexible approach to tempo where some notes are lengthened while others are shortened for expressive effect.

    S

    Scale

    Music Theory

    A sequence of notes arranged in ascending or descending order according to a specific pattern.

    Score

    Musical Term

    A written or printed representation of a musical composition showing all vocal and instrumental parts.

    Second

    Music Theory

    An interval spanning two scale degrees, such as from C to D.

    Sforzando (sfz)

    Dynamic Marking

    A sudden, strong accent on a single note or chord.

    Sharp

    Musical Symbol

    A symbol (♯) that raises a note by one half step.

    Sixteenth Note

    Music Theory

    A note with a duration of one quarter of a quarter note, represented by a filled oval with a stem and two flags.

    Slur

    Musical Symbol

    A curved line connecting notes of different pitches, indicating they should be played smoothly together.

    Solo

    Musical Term

    A passage or piece performed by one musician, or the featured performer in a concerto.

    Sonata

    Musical Form

    A composition for one or two instruments, typically in three or four movements.

    Soprano

    Vocal Range

    The highest female voice type, typically ranging from C4 to C6.

    Staccato

    Articulation

    A style of playing where notes are short and detached, indicated by dots above or below notes.

    Staff

    Musical Symbol

    The five horizontal lines on which musical notes are written, also called a stave.

    String

    Instrument

    A family of instruments producing sound through vibrating strings, including violin, viola, cello, and bass.

    Symphony

    Musical Form

    A large-scale composition for orchestra, typically in four movements.

    Syncopation

    Music Theory

    Emphasis on normally weak beats or off-beats, creating rhythmic tension and interest.

    T

    Tempo

    Musical Term

    The speed at which a piece of music is played, usually indicated by BPM or Italian terms.

    Tenor

    Vocal Range

    The highest male voice type, typically ranging from C3 to C5.

    Ternary Form

    Musical Form

    A three-part musical structure (ABA) where the first section returns after a contrasting middle section.

    Third

    Music Theory

    An interval spanning three scale degrees, such as from C to E.

    Tie

    Musical Symbol

    A curved line connecting two notes of the same pitch, indicating they should be held as one continuous sound.

    Time Signature

    Musical Symbol

    A symbol at the beginning of a piece indicating the number of beats per measure and the note value of one beat.

    Tonality

    Music Theory

    The organization of music around a central pitch or tonic, creating a sense of key.

    Tonic

    Music Theory

    The first note of a scale and the harmonic center of a key, providing a sense of home.

    Transpose

    Musical Term

    To move a piece of music to a different key while maintaining the same intervallic relationships.

    Treble Clef

    Musical Symbol

    A clef symbol (𝄞) indicating that the second line of the staff represents G above middle C.

    Tremolo

    Articulation

    A rapid repetition of a single note or alternation between two notes, creating a trembling effect.

    Triad

    Music Theory

    A chord consisting of three notes: the root, third, and fifth.

    Trill

    Articulation

    A rapid alternation between a note and the note above it, used as an ornament.

    Trio

    Ensemble

    A composition for three performers, or the group of three musicians performing together.

    Triplet

    Music Theory

    A group of three notes played in the time normally occupied by two notes of the same value.

    Tuning

    Musical Term

    The process of adjusting an instrument's pitch to a standard reference, typically A=440Hz.

    U

    V

    W