GuitarIQ app for iPhone and iPad

This is a app for learning music and guitar .
I am a indie game developer . I want to learn music theory to make music for my games . I want to find a easy and fun app to achieve this , but lots of music games are for maximizing enjoyment , they requires zero knowledge of music theory , and i learn nothing about music theory after playing those games , and, they don’t provide me a tool to input a song i want .
Because the user interface limitations of cellphone , i choose guitar and divide the process into two steps:
1. Input the chords,or left hand fingers positions.
2. Swipe , this is right hand in guitar .

It takes a hour for me to input a song , but after that , it is fun . I am using a bluetooth speaker .
There are four example songs in this app , i inputed and exported them using this app . I want to share other songs , but i can’t , because of copyright . You can input your favorite songs .
This app is not beautiful , but music is abstract too. The happy thing is you play your song input by yourself , and you know it better after that.