I've had my music off for ages, not because it's bad at all. Like Geo said in a different manner, the music has simply gotten repetitive and it adds immersion for me to have it off. No foul there.
Anyone saying the music doesn't provide valuable information though is lying to themselves. The first set of slow drums indicates they are roughly a map square away, and fast drums are the "look all over the place yo" indicator.
Removing them completely wouldn't be ideal. Detaching them from the above stipulations would be great. The drums can simply play when fighting breaks out, after everyone is engaged.
The idea here, I assume, is to allow me to stop using my crews as "sonar."