John Summers released HarmoGnome, a metronome for people who hate the sound of a typical metronome! Instead of clicking endlessly at you, HarmoGnome plays through a chord progression.
HarmoGnome iTunes Description:Harmognome is a metronome for chord progressions. Using a neural-network parametrization of the harmonic system itself, it allows for an efficient, flexible, and practical format for exploring any tonal music.
You should use this application if:
- you play scales to warm up
- you want to improvise over chords
- you want to become functionally aware of intonation
Its binary encoding of harmonic language will allow for sharing of sequences, harmonic MIDI control, and dynamic music.
And of course, you can just enjoy it with your own ears, fingers, and the instrument in your hands.
Here is a "Getting Started" video from the developer. There is also a more detailed tutorial.