It was produced using the "wall of sound" technique. The song is written in the key of C, in which it goes up from an E minor chord (in "The March of the Black Queen") to a C chord in this song. The song was never performed live, largely due to the demanding high-register vocals from Mercury throughout the song.
- Freddie Mercury – lead and backing vocals, piano, harpsichord
- Brian May – electric guitar, backing vocals
- Roger Taylor – drums, backing vocals, percussion
- John Deacon – bass guitar