The simplicity of design is key to improving
Auto chords is a very versatile programme.It gives sufficient chords to cycle through in the major, minor, and b keys.Then it allows the tweaking of borrowing chords through circle of fifths. I use the application before my weekly guitar lessons with the metronome and no other setting. This programme has increased my chord knowledge in the 1-IV-V format, as each chord is annotated to its place within the key etc. Well worth the money