free compatibility profile  A Sound Match has your free compatibility profile for music lovers at eharmony.com  they deliver matches with a high likelihood of compatibility which allows you to listen to the music of your sound matches inside profiles and emails by getting the Rhapsody player. It grants your free compatibility profile membership into a music community with people who share your taste in music. The way that this free personality compatibility profile works is that people who have similar music personalities get each other and get along, because people who like similar music have similar personality traits. To get started, you fill out the application with all of your personality profile features, and in 3 minutes the SAM test will measure your interest in music and send your Sound Matches to you, ranked by level of compatibility.