Michael Jackson’s masterpiece

“Wanna Be Startin’ Somethin’ ”: Hot as Jackson was after the quantum leap that 1979’s “Off the Wall” brought his solo career, few expected him to match, much less dramatically surpass, those heights so quickly. But “Thriller’s” leadoff track immediately established the new album as another giant step forward. It connected to “Off the Wall” with an irresistible Afro-Caribbean-funk dance-floor pulse and peppery horn accents akin to “Don’t Stop ‘Til You Get Enough,” then rocketed to new heights with even more sinewy bass and guitar lines propelling his impossibly nimble vocals. If “Off the Wall” demonstrated that Jackson was a kid no more, “Somethin’ ” signaled the full maturity of his musical acumen. All the more impressive for a song built on just two chords. (Randy Lewis)

“Baby Be Mine”: Imagine if this weren’t the better of the two non-singles from a monster album but a one-shot single by an unknown artist. The sweet midtempo glide of “Baby Be Mine” would have likely bubbled into the R&B Top 20 and gotten lots of roller-skate play, been included on recent mix CDs by cutting-edge European DJs and been remade as a slow jam at least three times. We’d have wondered at the bionic singer, the effervescent synth arrangements, the popping groove. In short, it would sound like the hidden classic it remains, even in plain sight. (Michaelangelo Matos)