You are SPOT on! So many musicians around, therefore so much competition, and because the industry is big and very fragmented, music is a business. I fully agree with you, when a musician does not run music as a business, the musician has only a very small change to get noticed, and their work to be rewarded in hard currency, through buying the tracks/albums, through gigs or whatever. I always laugh when reading posts here at Steemit, blockchains, Steemit, Musician to be the holly grail for musicians to earn money. And yes, money can be earned, but I think quite a few think it is easy. Long story short: Music is a business and when one wants to be successful in a business, one needs to approach it as a business (not saying the music itself should be mainstream, I think it should be a piece of art; something unique).