> SoundRat takes 6% on all payments. This is used to pay for the servers. I believe this is a fair number
If you really want to be fairer than the competition, be transparent about costs and profit margin. Just stating that 6% seems fair reeks of rent-seeking. This might not be what musicians and fans want, and it won't differentiate your service from Spotify.
> perks […] get access to lyrics.
You will need to come up with better perks than that. The lyrics for any moderately popular song can be found on-line at a click.
If you really want to be fairer than the competition, be transparent about costs and profit margin. Just stating that 6% seems fair reeks of rent-seeking. This might not be what musicians and fans want, and it won't differentiate your service from Spotify.
> perks […] get access to lyrics.
You will need to come up with better perks than that. The lyrics for any moderately popular song can be found on-line at a click.