cut/copy section does copy the tempo-map, so copying
a 4 Bar MIDI section will be 4 Bars after the paste.
This does not work the other way around:
With a tempo-map, 4 bars may correspond to 10 seconds
at the source position. While 4 bars at the target
position may correspond to a different audio-time
duration. This can lead to gaps or overlaps.
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