My advice is to get something that YOU like. We can give you names of songs all day however, none of it will matter unless YOU the PERFORMER likes it first. It doesn't have to be anything classical, techo or instumental, as long as you are inspired by it.
Take a look at your music collection, take a gander at the itunes or look on the shelves of Target. Trust me. I deal with music and performance everyday.
KE