Get licensed
To legally broadcast licensed music online — through your website or your mobile app — you need to be licensed by every organisation that represents the songs you play (BMI, ASCAP, SESAC or GMR) and to use the statutory licence for recordings, paid through SoundExchange.
For a small station the published starting points are: ASCAP's smallest licence at $336 a year, SoundExchange's minimum of $1,000 a year per station, BMI from about a dollar a day, and SESAC by quote. Fees then rise with your revenue and listening.