This might be entirely missing the point, but doesn't simply the production of new music, assuming it has any listeners at all, dilute the listenership of old m

This might be entirely missing the point, but doesn't simply the production of new music, assuming it has any listeners at all, dilute the listenership of old music? If there's new music released in year N, and it has some share of the listenership, all music from 0->N-1 will have decreased listenership. Right?