Dsound is what came to my mind when i first saw your question,Dsound is a very lovely app for 

music lovers and music artistes or music practicioners,the app is built on the steem 

blockchain and gives music artistes An opportunity to earn money from their 

music,though the money that the artistes will earn on the music will be through upvotes,the artistes 

might not earn huge income on the music at Dsound but the upvotes they get and the 

attention they get is also good for the career of the music artistes