How Chord Machine Works
There are seven chords in every major or minor key called the diatonic chords. These chords sound great together in almost any order and they are the foundation of all great pop and rock songs of the last century. Chord Machine uses these chords as well as first and second inversions, major seventh chords, minor seventh chords, dominant seventh chords, add nines, flat three, flat six, flat seven and secondary dominant chords to write brilliant, simple four chord progressions.
There are over 2 million possible chord progressions! This means that you can play with Chord Machine all day and never see the same song twice! You can also edit. Just tap the lock icon underneath the chords you'd like to keep and shake it again to replace the chords you don't like!
Touch the chord diagrams to hear the progression!
Finally, when you've got your next hit press “add” to archive it with the rest of your favorites and come back to it later.
Chord Machine won't write your songs for you but it's a fun place to start and sometimes that's all you need!

Chord Machine
-writes awesome four chord progressions in every major and minor key (over 2 million possible)
-allows you to “re-roll” any or all of the four chords
-switches from guitar chords to piano chords and back
-plays the guitar or piano chords as you touch them
-gives you the freedom to switch to any key at any time
-has a handy back button for when you've gone too far
-saves your favorite chord progressions forever
-books your shows and gets you a record deal (coming soon)