I use my own name. It is http://tdutkowski.com this kind of brand works greate. Many clients choose me because im a person not agency.
Clients get more personal feel comming to my site.
If you want to be big or you want to sell products you can make up some name. Depends on a buisness model.
If you want something simple maby download theme you like and add for example something like that https://wordpress.org/plugins/compact-wp-audio-player/
Add some album cover graphic and shortcode with song.
Create good content, add good titile description and tags.
Make sure people want to share your video.
Post video on social media and wach what happend.
In social media world there is a difference between traffic and good traffic.
When you post a link on facebook you can get a lot of traffic.
When you post connent on a web and you get people from google here you have a good traffic.
I think it is all about visitiors who are intrested in you content.
I think there is no such thing, if you have a site and you do the seo work and site maintains the position. You don't need to do anything.
I see a lot of site with no seo going and the still high rank.