NextChord: Chord Suggestions is a free multimedia application available on the iPhone platform. Developed by Boring Robot LLC, this program offers chord suggestions for your musical progressions. The suggestions are generated using a machine learning algorithm trained on over 10,000 songs.

With NextChord, you can use your phone's microphone to recognize the chord you are playing, and the app will provide you with new chord suggestions. As you build your progression, you have the flexibility to change the tempo, instrument, and the number of repeats. The app also allows you to hear any chord and view its diagram on the guitar or piano.

Furthermore, NextChord enables you to share your progressions with others or save them for later use. Whether you're a beginner or an experienced musician, NextChord: Chord Suggestions can be a valuable tool in exploring and expanding your musical creativity.