Levistus's_Leviathan
5e Freelancer
I'm with @Ruin Explorer on this one, comparing FR to Mozart is at the absolute least a laughably bad equivalency. Not only because Mozart's talent was with a much more vast and important platform than FR (Music is higher up than TTRPGs and fantasy worlds), but also because FR didn't really do anything revolutionary. I mean, a more valid comparison would be Eberron to Mozart, because Eberron actually did something different from most base D&D worlds while FR is in the same vein as Greyhawk and Mystara, but even then it's still an obviously flawed comparison.Yes it will out live you, but that doesn't mean I expect you to die young or anything, it just means FR has staying power to go for many more generations, like how people still listen to Mozart and put their own spins on his classical music.
(Also, no one listens to Mozart anymore. Play his music? Sure. But "recreationally listen to Mozart"? No. That's just not a thing anymore, and will continue to be less and less of a thing in the future.)