Most music sites rely on mob-rule as its default (and that's shown not to work so great) so I think this proposal is in the right direction. I think that this is already in place but I think that at the very least people should be a registered user on the site before their vote counts for anything. (1 user, 1 vote.)
But I'm more concerned about the fact that it's simply a lot of work for both the users and musicians to have to make informed choices about what "quality" means for something like music. I studied musicology for a few years and one thing that becomes obvious is that people generally have a lot of trouble talking about music in general because the language we use to describe musical concepts tend to be inadequate.
I think in the long run there will have to be a class of users that primarily focuses on curation as their main role, similar to how critics, reviewers, and tastemakers operate in traditional spaces. Musicians just want to make music and fans just want to listen -- I think you'd get better results if you give some weight to people who're really excited to do this stuff, imo. And it'll eliminate a lot of the conflict of interest issues that may lead to abuses of the system, which has always been a problem in the space as well.
Semi-related to my other project here about revamping the categorization and tagging schemes of Musicoin. Join the discussion if you have some ideas!
https://forum.musicoin.org/topic/87/musicoin-music-discovery-categorization-and-tagging-systems-design
last edited by Ryan Tanaka