Whilst I hate the loss of these great song lessons, I also understand that song licensing agreements are finite. I agree with Bob42, the lack of notification of impending deletion and replacement of lost classics with obscure Stones tracks, for the same cost, is disingenuous at best.
As a constructive suggestion, why can’t GT add a field in the ‘description’ section, indicating the licence expiry date, or add an ‘expiring soonest’ filter to the master song list?
At least, I’d have a clue which to learn first!