dude, go and meet people. socialize with friends and expand your circle of friends. the easiest way of meeting chicks with things in common is through friends. don't forget to wash and shave. if you find the right chick, you can get away with being smelly and haggard down the line, but not from the beginning.
oh an relationships require a lot of time and effort. i guarantee that getting a girlfriend will mean that there will be times when you have to pay attention to her, not the rig. you will need to make the effort to see her, and pay attention to her, or she will not hang around.
try finding a girl who is onto the same music as you, that way you will have stuff to talk about straight away, then you can offer her the chance to come and listen to the rig, and she should be blown away.
if all that fails, you could try men.