These are the basic steps for promoting and selling music over the world wide web:
1. Get an email address
2. Get a paypal account
3. Upload your audio to a website that sells or promotes music (like this website)
4. Promote your music and where it can be purchased : a mediaplayer is good for this. You can give the player away to people to embed in their webpages.

Sonicworldrecord services:email address: contact at sonicworldrecords dot co dot uk