Sixty-fourth note

It first occurs in the late 17th century and, apart from rare occurrences of hundred twenty-eighth notes (semihemidemisemiquavers) and two hundred fifty-sixth notes (demisemihemidemisemiquavers), it is the shortest value found in musical notation.

[2] Sixty-fourth notes are notated with a filled-in oval notehead and a straight note stem with four flags.

The stem is drawn to the left of the notehead going downward when the note is above or on the middle line of the staff.

A single 64th note is always stemmed with flags, while two or more are usually beamed in groups.

[3] A similar, but rarely encountered symbol is the sixty-fourth rest (or hemidemisemiquaver rest, shown in figure 1) which denotes silence for the same duration as a sixty-fourth note.

Figure 1
Figure 2: Sixty-fourth notes beamed together