Not a music person myself.
Discord for the game https://discord.gg/uFMrjDPs

Some records others made. Under the records tab in game.

The actual details of what is needed I do not know off hand.
There is a game token cost to releasing a tune. However, We will cover the cost of your first and second release. After that the income from sales will be able to cover the cost of releasing a tune.

We will provide this cost to the release of a tune, So you can try the game and use the release a record at no cost risk to yourself. Should you decide the game and release method does not suit you. You have n obligations.

Game link.
You can sign in using the Hive keychain.
https://www.risingstargame.com