_ TUPLET:
tuplet / irrational rhythm or groupings / artificial division or groupings / abnormal divisions / irregular rhythm
/ gruppetto / extra-metric groupings / contrametric rhythm.
Any rhythm that involves dividing the beat into a different number of equal subdivisions
from that usually permitted by the time-signature ( triplets, quintuplets etc. ).
A note value with a non-standard duration; a set of notes subdivided within a single beat.
Extrametric rhythmic units.
Three triplet eighth notes ( ‘quavers’ ) are equal in duration to one quarter note.
Tuplets can be denoted as a ratio ( eg. 5 : 4 )
For example :
Five notes played in the normal duration of four notes ( qunintuplet, 5 : 4 ).
Seven notes played in the normal duration of two ( septuplet, 7 : 2 )
Three notes played in the normal duration of four ( triplet 3 : 4 )
The ratio of a tuplet grouping depends on the time signature.
The first number of the ratio indicates how many notes there are in the tuplet.
The second number indicates how many note values that tuplet will occupy.
Therefore, three notes in the space of two ( 3 : 2 ) means that a triplet grouped with notes of
a particular value takes up the space of two notes of the same value.
In simple time ( 4/4 ), the second number of the ratio will either be a two, a four or an eight.
In compound time ( 3/4 ), the second number of the ratio will either be a three, a six or a nine.
Tuplets are named according to the number of irregular notes._
– TRIPLETS –
3 : 2
- ( A triplet is a group of three notes played inside another note-length.
It’s a portion of musical time that’s been split rhythmically into three equal parts.
A triplet group’s total duration is equal to two of the original note-values contained within.
For example, an eighth-note triplet spans two eighth-note beats (one quarter-note) and
a quarter-note triplet spans the length of a half-note.
Used in simple time to divide a beat that should contain two equal parts into three equal parts. )
– 3 in the duration of 1 / 8th of a beat, a thirty-second note ( ‘demisemiquaver’ ) = 64th-note triplets –
Sixty fourth-note triplets span the length of two normal sixty fourth-notes, or one thirty second-note.
– 3 in the duration of 1 / 4 of a beat, a sixteenth-note ( ‘semiquaver’ ) = 32nd-note triplets –
Thirty second-note triplets span the length of two normal thirty second notes, or one sixteenth note.
– 3 in the duration of 1 / 2 a beat, an eighth-note ( ‘quaver’ ) = 16th-note triplets –
Sixteenth-note triplets span the length of two normal sixteenth notes, or one eighth-note.
– 3 in the duration of 1 beat, a quarter-note ( ‘crotchet’ ) = 8th-note triplets –
Eighth-note triplets span the length of two normal eighth-notes, or one quarter-note.
– 3 in the duration of 2 beats, a half-note ( ‘minim’ ) = Quarter-note triplets –
Quarter-note triplets span the length of two normal quarter notes, or one half-note.
– 3 in the duration of 4 beats, a whole-note ( ‘semibreve’ ) = Half-note triplets –
Half-note triplets span the length of two normal half-notes, or one whole note.