I've found a contest that gives a prizes to the one who has the most plays on a certain song. How can the artist find this out and what counts as a one play? Can I somehow test what counts as a play on a 3min 11sec song?
I don't think there is such a way to see which users listen to you the most on Spotify. I have an artist account with my songs and I can see the countires that listen the most and how many plays I get per day, but it does not tell you the names or usernames of the people who listen the most.
Spotify will count a play if the songs is listened to for at least 30 seconds or more.