Where to begin.
Those of you who have been following things here on this forum should know by now that I'm not going to begin with "Jazz at the Pawn Shop", since I hocked my copy last week. I think that something a little more musically significant would be more in order to get things off to a good start.
So how about that old audiophile standby and jazz classic:
Duke Ellington - All Star Road Band, Vol. 1-2.
Recorded at dance in Chicago in 1957 it captures the great Ellington orchestra on a typical night playing wonderful music to make the paying customer happy. As ground breaking as Live at Newport? No. As well recorded as JATPS? No. But great music and lots of fun none the less and highly recommended.