Look at my playlist located on the left. If you don't know the songs take a few seconds and listen to a few minutes of each song. You and I may not have the same tastes in music, it is a matter of opinion about what is good music. The kind of music I listen to changes depending on the mood I am in. The fact is that these songs are some of my most frequently played, most MP3 players and digital media player applications (such as iTunes) allow you to sort music by most frequently played. Make a list of the most frequently played (3-5) songs. 

Go to Grooveshark, create an account, and create you own personal playlist.