I find panning useful for both rehearsal and performing live with backing tracks
Lately I've been panning my tracks with bass hard left and the drums hard right.

if a drummer sits in (or shows up for rehearsal) i can pan the playback hard and drop the drum track out completely.
I can also pan it slight down at rehearsal to give the drummer some idea of what my thoughts were when I created the arrangement.
I also sometimes pan the drum volume slightly down and get the drummer to play percussion (congas, etc).
I do the opposite if the bass player shows up. I mix any other instruments (usually a keyboard or other chording instrument) dead center and normally at a noticeably lower volume than bass and drums. This works great as a guitar trio sound with just the slightest comping from the keyboard. Keeps me (guitar) from having to play so much. Nothing worse than an guitar player overplaying.

Another option I used for a while was to pan both the bass and drums hard one side. This allowed me a quick and dirty eq capability when playing a boomy room. Not sophisticated but sometimes quite helpful. This was suggested by another member of this forum (i forget who to give the credit to) I found it useful back when gigs were more plentiful and I was playing everything from intimate restaraunts to outside tiki bar settings.

Hopefully we will soon have to once again deal with such problems.


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