music Music is generally defined as the art of arranging sound to create some combination of form, harmony, melody, rhythm or otherwise expressive content. Exact definitions of music vary considerably around the world, though it is an aspe ...

, a hundred twenty-eighth note or semihemidemisemiquaver or quasihemidemisemiquaver is a

note Note, notes, or NOTE may refer to: Music and entertainment * Musical note, a pitched sound (or a symbol for a sound) in music * ''Notes'' (album), a 1987 album by Paul Bley and Paul Motian * ''Notes'', a common (yet unofficial) shortened version ...

played for of the duration of a

whole note A whole note (American) or semibreve (British) in musical notation is a single note equivalent to or lasting as long as two half notes or four quarter notes. Description The whole note or semibreve has a note head in the shape of a hollow o ...

. It lasts half as long as a

sixty-fourth note In music notation, a sixty-fourth note (American), or hemidemisemiquaver or semidemisemiquaver (British), sometimes called a half-thirty-second note, is a note played for half the duration of a thirty-second note (or demisemiquaver), hence the name ...

. It has a total of five flags or beams. Since human pitch perception begins at 20 Hz (1200/minute), then a 128th-note tremolo becomes a single pitch in perception at = 37.5 bpm. A single 128th note is always stemmed with flags, while two or more are usually beamed in groups. Notes this short are very rare in printed music, but not unknown. One reason that notes with many beams are rare is that, for instance, a thirty-second note at = 50 lasts the same amount of time as a sixteenth note at = 100; every note in a piece may be notated as twice as long but last the same amount of time if the tempo is also doubled. They are principally used for brief, rapid sections in slow movements. For example, they occur in the first movement of

Beethoven Ludwig van Beethoven (baptised 17 December 177026 March 1827) was a German composer and pianist. Beethoven remains one of the most admired composers in the history of Western music; his works rank amongst the most performed of the classic ...

's ''Pathétique'' Piano Sonata (Op. 13), to notate rapid scales. Another example is in Mozart's Variations on ''Je suis Lindor'', where many of them are used in the slow twelfth variation. Likewise, 128th notes are used in the explicitly notated ornamental runs in the opening ''Adagio'' of Bach's g minor Sonata for Unaccompanied Violin (BWV 1001). These five-beamed notes also appear occasionally where a passage is to be performed rapidly, but where the actual

tempo In musical terminology, tempo ( Italian, 'time'; plural ''tempos'', or ''tempi'' from the Italian plural) is the speed or pace of a given piece. In classical music, tempo is typically indicated with an instruction at the start of a piece (ofte ...

is at the discretion of the performer rather than being a strict division of the

beat Beat, beats or beating may refer to: Common uses * Patrol, or beat, a group of personnel assigned to monitor a specific area ** Beat (police), the territory that a police officer patrols ** Gay beat, an area frequented by gay men * Battery (c ...

. In such cases, the aggregate time of the notes may not add up exactly to a full measure, and the phrase may be marked with an odd time division to indicate this. Sometimes such notation is made using smaller notes, sized like grace notes. One rare instance where such five-beamed notes occur as

acciaccatura In music, ornaments or embellishments are musical flourishes—typically, added notes—that are not essential to carry the overall line of the melody (or harmony), but serve instead to decorate or "ornament" that line (or harmony), provide added ...

s occurs in the final measures of No. 2 of Charles-Valentin Alkan's '' Trois grandes études'', Op. 76. Hundred twenty-eighth rests are also rare, but again not unknown. One is used in Beethoven's Piano Sonata No. 13 "Quasi una fantasia" (bar 24 in the adagio movement) where it is followed by an ascending run of 128th notes.

References

{{Musical note values Note values

See also

References