Whole note they may occasionally be put under a different line (or ledger line) in more complicated polyphonic passages, or when two instruments or vocalists are written on one staff and one is temporarily silent. The whole note and whole rest may also be used in music of free rhythm, such as Anglican chant, to denote a whole measure, irrespective of the time of that measure. The whole rest can be used this way in almost all or all forms of music. The symbol is first found in music notation from the late thirteenth century . The whole note derives from the
Time signature The meter is a simple time signature that represents three quarter notes (crotchets). It is felt as "Compound": In principle, comprises not three groups of two eighth notes (quavers) but two groups of three eighth-note (quaver) subdivisions. It is felt as These examples assume, for simplicity, that continuous eighth notes are the prevailing note values. The rhythm of actual music is typically not as regular. Time signatures indicating "two" beats per bar (whether in simple or compound meter) are called "duple meter", while those with "three" beats to the bar are "triple meter". Terms such as "quadruple" (4), "quintuple" (5),