John Morales and his M&M collaboration with Sergio Munzibai have helped pioneer the disco edit and dancefloor remix. The duo are known for adding touches of latin percussion to their extensions and Part-A of a two part retrospect sees Morales unveil some previously unreleased M&M material. The legendary melted chocolate vocals of "Never, Never Gonna Give Ya Up" by Barry White get a simple and irresistible "Keep On Doin' It" touch up, while M&M save only the best vocals by pop and jazz singer Jean Carne in their "South Philly Groove" mix to "Was That What Is". The sweaty dance heat of Teddy Pendergrass' "If You Know Like I Know" receives some added length and extra loops in the appropriately titled "Teddy Knows Best" mix, while cut and pasted (literally) drum loops give Sander Barber's "I Think I'll Do Some Stepping On My Own" some dancefloor momentum with the "Stepping Out The Door" mix.