+1 Jamie Cullum. Discovered myself earlier this year.
Listening right now to The Teskey Brothers "Half my Harvest". Sounds very promising. Try "Hard Feeling" and then "Honeymoon". Great NEW recording. Like Leon Bridges. THEY ARE STILL MAKING FANTASTIC WELL-RECORDED MUSIC.
Theres so many. Roseanne Cash made an acoustic "demo" a long time ago. Don't miss Radka Toneff, Eva Cassidy, Nancy LaMott.
Maybe they don't count but studio acoustic lives from Lynherd Skynherd, Nirvana, Alice in chains.
Guy Davies - Sweetheart like you
Bill Evans - Waltz for Debbie
Joss Stones - Soul sessions (first track is CLOSE)
Eric Bibb - Spirit and the blues
Jazz at the pawnshop
Featuring Norah Jones
A lot with Leonard Cohen
Cowboy Junkies - Trinity
Need to stop. Will be back.