Few bands these days don't record at least a few gigs per tour
for personal archive and potential commercial purposes.
But it's not economically viable to release an official CD of every tour.

But thanks to the wonders of the internet and dedicated music enthusiasts,
it's not so impossible to track down fan released 'bootleg' recordings
that may include the very gig you seek,
or at least representative recordings from others on the tour.

This may not be guaranteed but offers some hope,
and the hunt & pursuit provides further pleasures along the way...