What do you mean by custom? Music and sfx separately ?
Ohh yeah sorry, neither me or the programmer aren't composers, so yeah. We hate games without audio, and at the same time we didn't put something that would become very annoying quickly or from the get go. We love to use work of your favorite composer, but we always put a lot of effort in to selecting music we will use, to make sure it always fit the feel of the game we are going for. I know Shtobar is actually thinking seriously about learning how to compose music so who knows, maybe next year we will have our original score.