Index - N
| negate | TScore.Main, TScore |
| negateT | Tile.Tile |
| Ninth | TScore.Midi |
| normalizeT | Tile.Tile |
| note | TScore.Midi |
| noteInScale | TScore.Midi |
| noteT | TScore.Main, TScore |
| now | Reactive.QState, Reactive |
| NoWakeUp | Reactive.TimeStamp |
| nsToQuarters | Runtime.SymbolicTime |
| NumMode | TScore.Midi |