IRREGULAR GROUPS
-a triplet is a group of 3 notes played in the time of 2 of the same value
-a duplet is a group of 2 notes played in the time of 3 of the same value
-a quadruplet is a group of 4 notes played in the time of 3 of the same value
-a quintuplet is a group of 5 notes played in the time of 3, 4, or 6 of the same value depending on the time signature
-a sextuplet is a group of 6 notes played in the time of 4 of the same value
-a septuplet is a group of 7 notes played in the time of 3 or 4 of the same value depending on the time signature
-a duplet is a group of 2 notes played in the time of 3 of the same value
-a quadruplet is a group of 4 notes played in the time of 3 of the same value
-a quintuplet is a group of 5 notes played in the time of 3, 4, or 6 of the same value depending on the time signature
-a sextuplet is a group of 6 notes played in the time of 4 of the same value
-a septuplet is a group of 7 notes played in the time of 3 or 4 of the same value depending on the time signature