Later on you should be able to use some of your basic courses for psychology as fillers for credits in some requirements for your music degrees and vice versa. Even if you get one degree those courses can be listed as taken and credits recieved for them are transferable. Sociologies and psychologies are (or were when I was in college) were transferable to almost any degree and major and or minor (when completing two degrees at once.) Talk with your assigned guidance professor and they will explain how to take or complete both degrees either together or back to back or as a returning student.