Whole note

Figure 1. A whole note and a whole rest.
Comparison of duple note values: whole note = 2×half note, etc.
Drum pattern, quarter notes on bass and snare,
accompanied by ride patterns of various
duple lengths from whole note to 128th (all at quarter note=60)
Audio content icon1ⓘ 2ⓘ 4ⓘ 8ⓘ
16ⓘ 32ⓘ 64ⓘ 128ⓘ

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.