Just put up an update to allow input on any octave. Before it was restricted to C3 - C4

This fix affects the quiz mode and the practice mode. I've tested it rather rigorously as well. Next update will include a crash reporter so I can improve stability for everyone.

I've also changed the wording of the Circle of Fifth quiz questions as I learned that Eb Major has the same fifths as Eb Minor so it's redundant to include it. Thank you /u/moonwave99 for pointing this out.

Upcoming features:

• More quiz questions
• Show more keys on bigger screens
• Crash reporter
• Audio output device setting

Lastly, I've added tags to the GitHub project. Piano Trainer is ranking pretty well in most categories. I've also added a nice banner for the project to garner attention! Thanks for sticking around