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Concept
Accent (music)
Summary
In music, an accent is an emphasis, stress, or stronger attack placed on a particular note or set of notes, or chord, either as a result of its context or specifically indicated by an accent mark. Accents contribute to the articulation and prosody of a performance of a musical phrase. Accents may be written into a score or part by a composer, or added by the performer as part of their interpretation of a musical piece.
Compared to surrounding notes:
A dynamic accent or stress accent is an emphasis using louder sound or stronger sound; typically most pronounced on the attack of the sound.
A tonic accent is an emphasis on notes by virtue of them being higher in pitch, as opposed to higher in volume.
An agogic accent is an emphasis by virtue of notes being longer in duration.
Accents that don't correspond to the stressed beats of the prevailing meter are said to be syncopated. For example, in common time, also called 4/4, the most common metre in popular music, the stressed beats are one and three. If accented chords or notes are played on beats two or four, that creates syncopation, since the music is emphasizing the "weak" beats of the bar. Syncopation is used in classical music, popular music, and traditional music. However, it is more prominent in blues, jazz, funk, disco, and Latin music.
There are four kinds of agogic accents :
Longer notated duration of a note, for example, a whole note/semibreve (four beats in common time) among quarter notes/crotchets (each of which gets one beat).
Extended duration of a note within its full-time value (without altering the tempo). For example, players of organ and harpsichord (which do not allow the use of dynamic accents) can emphasize one of a sequence of staccato quarter notes by making it less staccato (that is, making one note longer to emphasize it).
Extended duration of a note with the effect of temporarily slowing down the tempo (rubato or rallentando).
Delayed onset of a note, for example by doing a pause before starting a note.
Official source
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