Musician / electronics
Barber was the lead guitarist in Liverpool's quartet "Cass and the Casanovas" and its subsequent The Big Three. Also an electronic wizard, he was responsible for upgrading the group amps (called "Coffins") but also upgrading other Liverpudlians gears. This included Paul McCartney's quad amp. He left The Big Three in mid-1962, when the band planned to be a quartet.
Sound stage manager
In 1962, due to his knowledge in the electronic field, Barber was hired by Horst Fascher to improved the Star-Club's Sound system. In late December 1962, he recorded bands performing and some of his tapes were released as Live! at the Star-Club in Hamburg, Germany; 1962.
Producer / sound engineer
In the late 1960s, Barber became a recording engineer/producer for Atlantic Records, for instance on
- 1969 Cream - Goodbye
- 1969 The Allman Brothers Band
- 1969 Velvet Underground - Loaded (also done some drummings)
- 1969 The Rascals - Freedom Suite
- 1969 The Rascals - See
- 1968 Buffalo Springfield - Last Time Around
- 1969 Bee Gees - Odessa
- 1973 Aerosmith - Aerosmith (album)
- Everett, Walter (2001). The Beatles as musicians: the Quarry Men through Rubber soul. Oxford University Press US. ISBN 978-0-19-514105-4. Retrieved 3 May 2010.
- Everett, p. 137
- Ingham, Chris (2003). The rough guide to the Beatles. Rough Guides. p. 18. ISBN 978-1-84353-140-1. Retrieved 3 May 2010.
- Everett, p. 167
- Curley, Mallory (2005), Beatle Pete, Time Traveller (Randy Press)
- Everett, p. 378
- Babiuk, Andy, Beatles Gear
- Power, Martin (1997). The complete guide to the music of Aerosmith. Omnibus Press. pp. 1–2. ISBN 978-0-7119-5598-1. Retrieved 3 May 2010.
- Graham, Sam (December 18, 1999). "Tom Dowd: A Producer's Impressions". Billboard. 111 (51): 24. Retrieved 3 May 2010.