Played live, the song would typically feature a short piano introduction absent from the studio version.

The song begins with a piano introduction and follows the traditional verse-chorus format.

The piano introduction though was played through the Hot Space and Works tours.

"Firth of Fifth" is performed without the piano introduction, beginning immediately with the lyrics.

It begins with a piano introduction of the main melody.

It also became available for download at digital music outlets on March 10 in two versions - with or without piano introduction.

The song begins with a slow piano introduction before picking up speed.

The song has a sense of mystery and starts off softly and slowly with a piano introduction.

The song starts out with a classical-style grand piano introduction.

The single A-side features an edited piano introduction, compared to the album version.