A Space in Time was Ten Years After's best-selling album. This was due primarily to the strength of "I'd Love to Change the World," the band's only hit single, and one of the most ubiquitous AM and FM radio cuts of the summer of 1971. TYA's first album for Columbia, A Space in Time has more of a pop-oriented feel than any of their previous releases had. The individual cuts are shorter, and Alvin Lee displays a broader instrumental palette than before. In fact, six of the disc's ten songs are built around acoustic guitar riffs. However, there are still a couple of barn-burning jams. The leadoff track, "One of These Days," is a particularly scorching workout, featuring extended harmonica and guitar solos.