Barcelona is a collaborative studio album recorded by Freddie Mercury, lead singer of popular British rock band Queen, and operatic Soprano Montserrat Caballé.

After Barcelona was selected to host the 1992 Summer Olympics, Mercury was approached to write a song as a theme for the forthcoming games.

It features a new version of the album with the previous instrumental tracks replaced with new, live symphonic orchestration and percussion rather than synthesizers and drum machines.

The recording sessions include violins by Homi Kanga and Laurie Lewis, cello by Deborah Ann Johnston, horn by Barry Castle and percussion by Frank Ricotti.

It was, however, featured as the city introductory video at the opening ceremony,[7][8] and it was used as the title music to the BBC's coverage of the 1992 Summer Olympics.

Originally a virtuoso piano piece by Moran with some high vocals from Mercury, it was named "Rachmaninov's Revenge" (demos come from 26 January and 19 February respectively).

[10] Unlike "Exercises", "Ensueño" does not include any orchestration or backing vocals: Mike Moran plays only a piano part as an accompaniment for the two singers.

The celebrity gospel choir featured Madeline Bell, Dennis Bishop, Lance Ellington, Miriam Stockley, Peter Straker, Mark Williamson, and Carol Woods.

Morley listened to the original record to capture the harmony and leading parts, then re-orchestrated the score with traditional paper, pen and eraser, using Rimsky-Korsakov's "Treatise on Orchestration" and "Scheherazade", Tchaikovsky's "Fourth Symphony" and Debussy's "La Mer" as a reference.