This would work if the artist Tonkines their song. Otherwise.. who is paying the profits on the song rise... it just gets popular... or, like money put in, is invested into the song/album, and then you get rolatys based on the capital that song gains over time, or buy-in level and such.

Sorta like group buying of stocks and all splitting the profits on it, but for music or film.

Otherwise, what you are saying with song pump, it just pump.fun with a musical twist to it, and the musical artists who make the song don't get any profit from their works...