A septuplet is an irregular time division that tells us to play seven notes in the time of four. You write a septuplet by adding a number seven above the notes that it applies to.
How many beats is a Septuplet?
As the name implies, septuplets are achieved by splitting each beat into 7 parts. Like quintuplets, they sort of fit in the space between two other rhythmic rates: 16th triplets and 32nd notes.
What is a 10 Tuplet called?
Besides "triplet", the terms "duplet", "quadruplet", "quintuplet", "sextuplet", "septuplet", and "octuplet" are used frequently. The terms "nonuplet", "decuplet", "undecuplet", "dodecuplet", and "tredecuplet" had been suggested but up until 1925 had not caught on.