Guitar Sounds

Hello, this is my first android app, the app about music, but only one musical instrument is figured out, with three categories, like electric, classic and bass. Songs we're been downloaded from sites, such as sound fx and looperman, by 1 or 2 minutes longevity, and their size reduced to 100-300 kb, cause there's many sounds, and pictures above them.

Three categories
Electric guitar – here you can hear rock'nd roll
Classic guitar – here you can hear east, one sound of hip-pop and one sound of jazz.
Bass guitar – here you can hear the same, like electric, but on bass. Planned like blues sounds, in bass category.