The year I spent in a band we were able to get our songs visable and and used in independant / uni films. The goal was from there to build it up so that the profile got out futher.
... then it was generally agreed that as far as rock star goes, I make a far better programmer/entrepreneur :)
Wish I could help more, I think its a question generally for your industry at the moment.
Few ideas I have had while writing this:
Once you have a bit of practice at it you could outsource parts of that work to a VA fairly easily ...
BUT, becareful, what I have outlined above done well works ... if you a genuine ... if its not done well it falls under the catagory of SPAM / junk and will more likely hurt your brand and your bands.
Thats about all I have, look forward to seeing what others think.
Here are a few things you could do:
The music industry is ALL-KINDS of competitive so you'll ready need to be creative. On the flip side, social media gives everyone a platform to audition. Good music marketed to the right target audience always sells. Stay Encouraged!