Previously purchased music gone after cancelling Apple Music free trial subscription

I had an extensive music library through iTunes - all purchased - and after signing up for the free 1-month trial of Apple Music and cancelling the free trial within the free period some of my music, purchased long ago, is now gone.  At first they showed up with a cloud icon, indicating that they were downloadable, but then when I tried the entry just turned grey and I can't play or download or anything.  Apple Music grabbed them - but they were already mine!

Giving up I went ahead and re-purchased one through the Store in iTunes and it STILL won't play for me - it said I need to use Apple Music!  So now I can't even buy my songs back again ......