The band carried almost 40 tons of equipment for the tour. Performances from the band's 1973–74 tour were documented in the live album, "Welcome Back, My Friends, to the Show That Never Ends ~ Ladies and Gentlemen", released in August 1974 as a triple LP. The album peaked at No. 5 in the UK and No. 4 in the US. Emerson, Lake & Palmer took an extended break in 1974. They regrouped in 1976 to record "Works Volume 1" at Mountain Studios in Montreux, Switzerland and EMI Studios in Paris, France. It is a double album with one side of an LP containing songs by each member and a fourth of group material. Much of the album was recorded with an orchestral accompaniment; Emerson's side consists of his 18-minute, three-movement "Piano Concerto No. 1". Lake contributes five songs he co-wrote with Sinfield, and Palmer's includes two covers of classical pieces by Sergei Prokofiev and Bach. One of the two group tracks, "Fanfare for the Common Man", is a cover of the same-titled orchestral piece by Aaron Copland, who gave permission to have the band release it. "Works Volume 1" was released in March 1977 and peaked at No. 9 in the UK and No. 12 in the US. A single of "Fanfare for the Common Man" was released and reached No. 2 in the UK, the band's highest charting UK single. In November 1977, "Works Volume 2" was released as a compilation of shorter tracks recorded from 1973–76 during various album recording sessions. The album was not as commercially successful as the band's previous albums; it reached No. 20 in the UK and No. 37 in the US. Three tracks from the album were released as singles: "Tiger in a Spotlight", "Maple Leaf Rag", and "Watching Over You". The two "Works" albums were supported by North American tours which lasted from May 1977 to February 1978, spanning over 120 dates. Some early concerts in 1977 were performed with a hand-picked orchestra and choir, but the idea was shelved after 18 shows with the band due to budget constraints. The final concert with the orchestra and choir took place on 26 August 1977 at the Olympic Stadium in Montreal that was attended by an estimated 78,000 people, the highest attended Emerson, Lake & Palmer concert as a solo act. It was released in 1979 as "Emerson, Lake & Palmer in Concert" and reached No. 73 in the US.