One hundred and twenty-one bpm in milliseconds.
| Musical note name | Duration in milliseconds |
|---|---|
| octuple note (8) | 15866 |
| quadruple note (4) | 7933 |
| breve (2) | 3966 |
| semibreve (1) | 1983 |
| minim (½) | 991.736 |
| crochet (¼) | 495.868 |
| quaver (⅛) | 247.934 |
| semiquaver (¹⁄₁₆) | 123.967 |
| demisemiquaver (¹⁄₃₂) | 61.983 |
| hemidemisemiquaver (¹⁄₆₄) | 30.992 |
| semihemidemisemiquaver (¹⁄₁₂₈) | 15.496 |
| demisemihemidemisemiquaver (¹⁄₂₅₆) | 7.748 |
