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actions tracklist-selections-action
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Scheme Procedure: **tracklist-selections-action-new-create-instrument** | *pl_descr track_pos num_tracks*
   Returns a new action for creating an instrument track.


Scheme Procedure: **tracklist-selections-action-new-create-audio-fx-with-plugin** | *plugin_descriptor track_pos num_tracks*
   Returns a new action for creating one or more Audio FX tracks with a
   plugin.


Scheme Procedure: **tracklist-selections-action-new-create-audio-fx** | *track_pos num_tracks*
   Returns a new action for creating one or more empty Audio FX tracks.


Scheme Procedure: **tracklist-selections-action-new-midi** | *track_pos num_tracks*
   Returns an action for creating one or more empty MIDI tracks.


