Chord Progression Maker is a free android application developed by Basis Five under the category of multimedia, specifically for music and radio. This app is designed for both musicians and anyone interested in learning about harmony. It allows you to create your own library of chord progressions and explore the limitless possibilities of harmony. A chord progression is a sequence of chords that can be of any length, and this app supports all types of chords. You can set the tempo and the time signature, and in the main screen, you can see the chord progression you are working on in two different representations: as a sequence of buttons and also as a traditional staff notation.

The buttons' width is proportional to the chords' value, and the chords placed on the staff are touch-sensitive. You can touch a chord to hear it play or press the Play button to hear the whole sequence from scratch. The progressions are automatically saved, and you can explore any combination of chords easily and with a lot of fun. You can also export your work to another device by pressing "Export all" in the old device, then copy and paste the backup file, and finally press "Import all" on the new device. With Chord Progression Maker, you can find this app useful, creative, and educational.