In the SongBook+ settings, you can configure whether to send MIDI Stop when a song is stopped.
With the "Actions on Stop" button in the song's editing window, you can define any MIDI commands that should be sent when the song is stopped.
In the MIDI settings under "MIDI" -> "MIDI Macros" -> "Macros for Handling Songs," you can select a predefined MIDI macro that will be sent when stopping any song. It can also be set whether this macro should be sent even if the song already has its own "Actions on Stop."
SongBook sends the content of a MIDI file as soon as a song is stopped, if a .mid file with the same name as the .pdf file, appended with "_stop.mid" exists.
(e.g., MySong.pdf -> MySong_stop.mid)
Only MIDI files of type 0 (single track) are allowed. All commands are sent at once without considering the timing. Therefore, no music can be sent, only commands to configure the environment.