Outstanding!

Ive been playing guitar for a little over 2 years and had just brushed the surface with theory. This app is an outstanding learning tool. It is well designed and easy to use. I love that it allows you to enter your answers on a guitar image. Most theory books and apps are geared towards the piano. This app gives you a choice of instruments. No previous knowledge necessary. Thanks!!!

Slim Willie about Music Theory by Musicopoulos, v2.6.1