But just off the top of my head:
'The Big Bopper'
Stevie Ray Vaughan
Half of Lynyrd Skynyrd
There are others. This list is probably biased toward my personal musical tastes. And yes, again, I get that it's over a half century and only about a dozen people. But it still seems to happen with a decent frequency. Most, I assume, has to do with touring with small and unreliable planes and pilots, rushing for schedules and ignoring bad weather. Lot of good music lost.