X | Speed of Sound- producer:
- Coldplay and Danton Supple
- assistant mixer:
- Keith Gary and Will Hensley
- mixer:
- Michael Brauer
- acoustic guitar, keyboard, organ, piano and lead vocals:
- Chris Martin
- drums (drum set) and percussion:
- Will Champion
- electric bass guitar and synthesizer:
- Guy Berryman
- electric guitar:
- Jonny Buckland
- strings:
- Susan Dench , Richard George , Peter Lale , Laura Melhuish , Audrey Riley and Chris Tombling
- background vocals:
- Guy Berryman and Will Champion
- strings arranger:
- Audrey Riley
- phonographic copyright (℗) by:
- Parlophone Records Ltd (in 2005) and Parlophone Records Ltd. (in 2007)
- recorded at:
- Parr Street Studios in Liverpool, Merseyside, England, United Kingdom and Sarm West Studios in Notting Hill, Kensington and Chelsea, London , England, United Kingdom
- part of:
- Indie 88: Top 500 Indie Rock Songs (number: 187)
- recording of:
- Speed of Sound
- writer:
- Guy Berryman, Will Champion, Jonny Buckland and Chris Martin
- publisher:
- BMG Music Publishing Ltd., BMG Songs and Universal Music Publishing MGB Ltd.
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