{Amy Winehouse wanted to form jazz supergroup|Remi, who worked on the British singer’s first two albums, “Frank” and “Back to Black,” produced most of the upcoming set|(CBS/AP) Amy Winehouse still had a lot of music left in her|Remi associated some of Winehouse’s substance problems with her struggle in relationships|The late singer, who died in July, wanted to release a jazz album with a “supergroup” that included drummer ?uestlove of the Roots and saxophonist Soweto Kinch, according to music producer Salaam Remi|The soon-to-be-released 12-track compilation features covers and stripped-sounding versions of released Winehouse songs, with some completed in one take|?uestlove appears on “Half Time,” one of the songs on the upcoming collection|