The 42nd Detroit Jazz Festival, the largest free festival of its kind, went ahead in a manner, if not as usual, similar to last year: “remotely.” The downtown Marriott was again deployed to host three sponsored soundstages from which 36 shows were broadcast live. Herbie Hancock, playing his first public performances since the onset of Covid, declined photographers, journalists or audience in the ballroom for his opening night concert. Having lost Chick and McCoy recently and with Keith out of commission due to strokes, it was understandable that the 81 years young legend was extra cautious. When Jazzwise spoke to Monty Alexander, 77, before his hit with HKX (Harlem Kingston Express), it was to check on him, since he’d suffered a heart attack onstage in Montreal some years back. “Whatever that was, it’s gone!” responded the bon viveur pianist, impatient at mention of malady. Monty brought an all-star jazz/reggae octet including saxist Wayne Escoffery and guitarist Yotam Silberstein. Breaking schtick, he played in trio with vibraphone to commemorate a residency in Detroit with Milt Jackson back in ’67, after offering a darkly topical rendition of ‘Hurricane’ given recent damage wrought by such, “they used to terrify when I grew up on the island.”