826 - Black Sabbath Changes 1972

In June 1972, Black Sabbath reconvened in Los Angeles, California to begin work on their fourth album, "Volume 4", at the Record Plant Studios. This was the band's second album to be recorded there. The recording process was plagued with problems, many due to substance abuse issues. "Volume 4" demonstrates Black Sabbath beginning to experiment with the heavy sound they had become known for. Although some songs, such as "Supernaut" and "Cornucopia" are in their trademark style, others demonstrate a soft, orchestral approach. This is exemplified by the song "Changes". Written by Tony Iommi, it is entirely in the form of a piano ballad with mellotron.