Soundbrew helps you discover music from independent artists based off tags you choose. Tags could be a mood, activity, city, genre, anything! Simply choose the tags you want, then Soundbrew will generate a playlist of music that closely match those tags.
Tycho and I developed this app which turns your weather into a playlist. It uses the Dark Sky api to get your local weather conditions and then relates those conditions to audio features. For example, a gusty day may produce tracks with a higher tempo. ⛈