Hundred twenty-eighth note Hundred twenty-eighth note In music, a hundred twenty-eighth note or semihemidemisemiquaver or quasihemidemisemiquaver is a note played for of the duration of a whole note. It lasts half as long as a sixty-fourth note. 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 quarter note ≈ 160 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
Two hundred fifty-sixth note (1800), to notate rapid scales. Another example is in Mozart's Variations on "Je suis Lindor" (1778), where four of them are used in the slow ("molto adagio") twelfth variation. A further example occurs ("Grave.Adagio non troppo") in Jan Ladislav Dussek's (1760–1812) Fifth Piano Sonata, Op. 10 No. 2. They also occur ("Largo") in Vivaldi's (1678–1741) Concerto, RV 444, and in bar 15 of François Couperin's "Second Prelude" from "L'art de toucher le clavecin" (1716). The next note value shorter than the two hundred fifty-sixth note is the five hundred twelfth note with seven flags or beams; it is half as