music files are huge files. I would find a host where you can upload mp3's and things at and then link on your site because with free hosting and the free subdomain music files are pretty much out
For starters with the free hosting/free subdomains you don't have a lot of space to even work with
If you want music then upgrade to paid hosting.
If need videos upload to youtube and it will generate the code needed and you can place on your site