What is the best Frank Sinatra CD?

Try the remastered Sinatra At The Sands with Count Basie. The
LP is one of the great live recordings and the CD is pretty good.

I don't know if it is "sonically definitive," but one of my favorites has awlays been "Sinatra and Jobim" conducted by Claus Ogerman. Some of Sinatra's best vocal work, IMHO, and the remastered CD sounds quite good.

"Songs for Swingin' Lovers" (MFSL UltraDisc 24 Kt. Gold CD)

Matt:

Sinatra's voice sounded at its best in the 1950's on Capitol records with Nelson Riddle conducting. With that said ... for pensive Sinatra at its best, go with "In the Wee Small Hours of the Morning." For swinging Sinatra at its best, go with "Songs for Swingin' Lovers."
Honorable Mention goes to "A Swingin' Affair" ... getting the brass fanfare right will be a real test for your amps & speakers.

Regards, Rich

My favorite Sinatra album is Francis A. & Edward K. The remastered cd is very nice sounding and if you can find the vinyl it is exceptional. By the way Edward K is Duke Ellington.