ChordProg is like no other ear training app on the market. We have created a app that uses real audio clips so you get to train chord progressions by listening to chords in a musical context. If you want to try out the app i would encourage you to try to download the lite version. Becoming a nachspiel playing machine has never been easier. - Learn to recognize chord progressions- Chose between relative and absolute chords- Transpose to any key- Get instant feedback- Over 200 unique audio clips- 50 unique Levels and growing.