This app pulls together London music venues (the 50s to the present day) with geotagged Spotify playlists to create a music tour of London.

https://play.google.com/store/apps/details?id=com.jgme.musicalley&feature=search_result&fb_source=message#?t=W251bGwsMSwyLDEsImNvbS5qZ21lLm11c2ljYWxsZXkiXQ