This application allows you to quickly determine the chords to use when composing your own music. You can also use it to determine the Key (tonic and mode) of your favorite songs. Using the rotatable tonic and mode wheels, you can quickly transpose songs into any key you like. Just touch one of the wheels and drag it into the position you want. Version 1.1 saves your settings between sessions, and the improved the functionality.
iPhone OS 2.x
||Requires iPhone 2.0 software update