A tuplet ratio: actual written notes played in the time of normal ones — { actual: 3, normal: 2 } for a triplet, { actual: 5, normal: 4 } for a quintuplet.
actual
normal
{ actual: 3, normal: 2 }
{ actual: 5, normal: 4 }
How many notes are written.
How many of the same base value they occupy.
A tuplet ratio:
actualwritten notes played in the time ofnormalones —{ actual: 3, normal: 2 }for a triplet,{ actual: 5, normal: 4 }for a quintuplet.