You can upload music now...Even computer phobic little old me has done it.
I don't have a website, but there are various sites for MP3s etc.
It's all me playing, and it certainly isn't a commercial release on any record label.
One tune was to help a friend learn a tune she was having problems with, and it was easier than putting a CD in the post..(It was snowing!).
But I would be happy for other people te hear it (not to say amazed that anyone would want to!)