As far back as the ‘60s, Barbra Streisand began matching voices with the great singers of the era. The decades have seen her trading verses with artists from just about every idiom of modern popular music, and the most familiar cuts here testify to Streisand’s ability to find emotional common ground with stylists as different as Frank Sinatra (“I’ve Got a Crush On You”), Barry Gibb (“Guilty,”), Donna Summer (“No More Tears (Enough Is Enough)”), Kris Kristofferson (“Lost Inside of You”) and Neil Diamond (“You Don’t Bring Me Flowers).” Lesser-known tracks feature intriguing numbers with everyone from Ray Charles (“Cryin’ Time”) to legendary composer Harold Arlen (“Ding-Dong! The Witch Is Dead”). For those who mostly know Barbra’s later work, there are revelatory moments to be heard here, such as her heart-tugging duet with Judy Garland on “Get Happy/Happy Days Are Here Again.” New studio team-ups with Barry Manilow (“I Won’t Be the One to Let Go”) and Josh Groban (“All I Know of Love”) demonstrate that Streisand hasn’t lost her sensitivity or panache as a singing partner.