Commits all the pending changes for the elements contained in the track.
When changes are made to the timing or priority of elements within a track, they are not directly executed for the underlying
nlecomposition and its children. This method will finally execute these changes so they are reflected in the data output of the
track.
Any pending changes will be executed in the backend. The commited signal will be emitted once this has completed.
Note that commit will call this method on all of its tracks, so you are unlikely to need to use this directly.
| this |
A Track |
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true if pending changes were committed, or false if nothing needed to be committed. |