Spotify - Map shows when two people play same song at same time
SoundCloud Go - Your favorite music and new discoveries, offline and ad-free
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
SoundCloud - Enjoy music & follow favourite artists
Audiomack - The free SoundCloud alternative
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.