Advice on hosting is country specific. In the UK you should be able to get web space as part of your ISP package.

You can also get hosting separately, either:
"free" - ie with popups or banner ads
or paid for.

Term to watch - bandwidth - how much data can be accessed by visitors. IF you are providing music this can get eaten up quickly.

Sort out your basic site design on your PC
THEN
Find somewhere to host it
THEN
Worry about domain names