Musicians use Royal to sell royalty ownership in their songs. You can purchase song royalties from streaming services in the form of tokens directly from the artist. If you'd like, you can put your token up for sale on an NFT exchange such as OpenSea.

Royal does not charge a fee. Although, there may be gas fees that occur during your transaction. This is essentially the transaction fee and it varies per transaction.

When investing in musician, you are taking the chance that said artist will do well enough to provide a return on your investment. Although, there is the always the risk of that not being the case. Check out the Royal privacy policy here https://royal.io/legal/privacy