UX Storyboard - Tell better stories of your product through storyboarding
Magic Playlist - Get the playlist of your dreams based on a song
Storyboarder - Storyboarder makes it easy to visualize a story as fast you can draw stick figures.
Spotalike - Spotify playlist with similar songs, according to Last.fm
StoryboardHero - Drastically reduce time and cost to create storyboard
Playlist Machinery - Tools that help you create & organize your Spotify playlists