(As always, thank you for reading. The below is personal opinion only and does not represent the opinions of others)
SUGGESTION:
The GM should have a toggle for the media player which allows them to 'Allow Overlap of Tracks' or 'Replace Playing Track when new Track is played', heck, even a 'Lower volume of track while SFX are playing' option might do as well.
However, this would require that the GM have an 'SFX' button next to track name to tell the game that it's not music, but rather a sound effect.
