How hard is it to keep freemp3 at the top of google

I just cannot believe how easy it is to see my free mp3 download website fall from grace with google. It just absolutely amazes me that I can be no1 1 month and don't really do anything different and I fall to past 100 for the same keywords. If anyone can help me that would be great I am trying to get good results for free mp3 downloads or music

Updates to the musician wanted website

Just to let you guys know I have finally finished updating the www.musicianwanted.com.au website and I have also worked on some improvements for the www.freemusicdirectory.com.au website. Bith of these music sites have taken on the look and feel of the free mp3 site but are tailored to their specific requirement.