Good Jazz/Vocal Reference CD Recommendations?

Cassandra Wilson, any of them. Great voice, amazing sonics.

Eva Cassidy - "Live At Blues Alley"
Herb Alpert - "Midnight Sun" (I'm not kidding on this one. Stunning sonics)
Bill Evans Trio - "Waltz for Debbie", "Sunday At The Village Vangard"
Sonny Rollins - Remasters of "Saxaphone Colossus", "Way Out West"
Art Pepper - "Meets The Rythmn Section"
Miles Davis - Soundtrack from "Finding Foresster" (Mostly Miles, but other artists as well)
Patricia Barber - "Cafe Blue", "Companion", "Modern Cool", "Verse"

Concur with the suggestions above, and would also add some of Diana Krall's CDs, such as "Steppin' Out" and "The Look of Love". Some great turn-out-the-lights-and-u-r-there whisky sippin' music.

For vocal jazz, I would add the different, yet excellent disc by Susanne Abbuehl entitled "April" on the ECM label. Interesting selection of well-recorded tunes by a singer with a stunningly pure alto voice. Very nice.

Also on ECM, any of the last few discs by the Dave Holland Quintet, really great music performed by excellent musicians. Great recording quality.

Hmmm, I seem to be fixated on the ECM label, 'cause I would also recommend Keith Jarrett for piano-based jazz, either solo or his 'standards' trio with Jack DeJohnette and Gary Peacock. The ECM label has a reputation for paying attention to the sound quality of its recordings.

You must listen to "Josh Groben", absolute, must have CD from Reprise Records Warner Music Group. Let me know what you think?