Magic Playlist - Get the playlist of your dreams based on a song
Journal - Organize all your ideas
Spotalike - Spotify playlist with similar songs, according to Last.fm
Day One - A simple journal application for the Mac, iPhone, and iPad. AboutTo learn more about Day One, see these two excellent reviews . PublishPublish is not available in Day One 2.
Playlist Machinery - Tools that help you create & organize your Spotify playlists
Journalistic - A simple, yet powerful micro journaling app