RateTune is a site to help a group of people find out what music they all like.
Everyone is invited to a group, where they can suggest songs and rate the songs that others have chosen from 0 to 10.
The best way to use RateTune is to listen to the group's songs together while rating them. If you can't see each other, you can use something like Groovy.
To start, go to groups. Be prepared to be brutal with your opinion.