I think that in matter of art quality is probably associated with creativity originality and complexity including technicityas well as authenticity ... I had a neighbour who was a jazz saxophonist he used to laugh at my musical taste saying it was just so primal it couldn't be as "good quality" as John Coltrane .then yes enter what is called taste and what is called ordinary and extraordinary .... not everyone has the same taste but even if it's not ok to ttalk about quality for music everyone can understand what was meant here ...