For many years I did almost nothing but band photography and the canon 24mm f/2.8 was on my camera almost all of the time. I loved the wide angle aspect of it but I also took photos at many small venues or places where I could just climb on stage and not get harassed (it's amazing where you can go in a venue if you are carrying a camera, nobody questions you) I did have to use a flash, however (I had a bounce velcroed to it) and often did a lot of rear curtain sync.
I just recently got the 35mm f/1.4 and I love it so far but haven't had the chance to use it to take pictures of bands.
Here are some examples of stuff I took with the 24mm f/2.8. Note, these are scans of b/w prints (ilford hp5 400) that I printed themyself, so I'm not sure how well this lens translates to digital (haven't used it yet on my 5dm3 as I've been too busy with the 35)