The Prog Machine is the only app you will need to generate incredible chord progressions. From a single interface, you will have at your fingertips five types of chord progressions to inspire you and help you in playing or composing songs in any style.

Over 130 chord progressions available in seven keys. This makes a total of … over 900 different chord progressions!!! There is no song on earth that has not been composed with one of the progressions available in this app.