Radio promotion is just another way of marketing your music to the world.
With radio, you can market your music via airplay, sell your brand via interviews, and position yourself properly in the media space.
Artists like Omah Lay, Rema, etc rose to fame through airplay. Their record labels or management was able to utilize their contacts and secure not just random airplay but constant radio rotation for their materials across the four walls of the nation.
Of course, you can pay radio stations to play your songs 10-1000 times a day if you have a heavy budget to pay them and other radio stations across the country. While that is possible, this write-up is only after the ways to secure constant airplay with a zero budget.
1. Build good relationships with radio OAPs and DJs
Do you know you can get a radio to constantly play your songs for free by simply having a good relationship with the music manager (for the stations who have one), OAP, and/or their DJs. Try to build relationships. Reach out to people, make friends, ask them for a meeting. Link up on bars, eateries, etc, and try to be a friend. Once you can build a good (non-parasitic) relationship, you can always get them to push your songs for FREE.
2. Spam radio shows
Spam could be a negative word but in this context, it is not. I promise you that. There are radio shows that demand the public to call in and demand a particular song to be aired. Do you know you can get your friends to assist you in calling those numbers AT THAT STIPULATED TIMES and get them to request for your song to be played? No radio will fail to play that song when they get two or more people requesting it.
3. Email marketing
Email marketing is another secret. You need to source for the emails of radio stations, OAPs, and DJs and regularly mail them. You should be strategic about this. Do not send emails too often and don't be too demanding. At times, just said them and email to celebrate them and not just for them to air your songs on the radio.