It's been just over a century since people began learning songs from recordings, not only through "live" experiences of hearing music. We who are alive today have very little in common with earlier practitioners of "traditional" music, and everything in common with the players and listeners of the future.

No music will "die" that doesn't deserve to. Certainly, some individual songs that we know today will be forgotten, but not all of them. Also, in the future just as in the present, there will surely be "cult followings" of certain traditions and styles that may not be widely supported by the population at large but which are loved by a select few.