Songstack - Swipe to discover new music for Spotify
Concertmaster - Classical music front-end for Spotify
22tracks - DJ curated Spotify playlists on iOS
Classical - A classical music interface for Apple Music
8tracks 3.0 (iOS) - Refreshingly human music playlists
Music-Map - The Music-Map is the Tourist Map of Music, part of Gnod, the Global Network of Discovery.