Complex sentence: They worked on two important double albums in the 1970s: "Layla and Other Assorted Love Songs" by Derek and the Dominos in 1970, and the first album from Stephen Stills's group Manassas in 1972.
Split into simpler sentences: They worked on two important double albums in the 1970s: "Layla and Other Assorted Love Songs" by Derek and the Dominos in 1970. The first album from Stephen Stills's group Manassas in 1972.