| B | One Summer Dream- engineer:
- Dave, Jimmy and Mack
- producer:
- Jeff Lynne
- bass:
- Kelly Groucutt (from 1975-05 until 1975-06)
- cello:
- Melvyn Gale (from 1975-05 until 1975-06) and Hugh McDowell (from 1975-05 until 1975-06)
- clavinet, Moog and piano:
- Richard Tandy (from 1975-05 until 1975-06)
- drums (drum set) and percussion:
- Bev Bevan (from 1975-05 until 1975-06)
- guitar:
- Jeff Lynne (from 1975-05 until 1975-06) and Richard Tandy (from 1975-05 until 1975-06)
- violin:
- Mik Kaminski (from 1975-05 until 1975-06)
- background vocals:
- Susan Collins (from 1975-05 until 1975-06), Ellie Greenwich (from 1975-05 until 1975-06), Nancy O'Neill (from 1975-05 until 1975-06) and Margaret Raymond (from 1975-05 until 1975-06)
- lead vocals:
- Jeff Lynne (from 1975-05 until 1975-06)
- conductor:
- Louis Clark
- arranger:
- Louis Clark, Jeff Lynne and Richard Tandy
- phonographic copyright (℗) by:
- United Artists Music and Records Group, Inc. (in 1977)
- recorded at:
- De Lane Lea Studios in Soho, Westminster, London , England, United Kingdom (from 1975-05 until 1975-06), Musicland Studios in München , Bayern , Germany (from 1975-05 until 1975-06) and The Record Plant in Midtown Manhattan, New York, New York, United States (from 1975-05 until 1975-06)
- remixed at:
- The Record Plant in Midtown Manhattan, New York, New York, United States
- recording of:
- One Summer Dream (from 1975-05 until 1975-06)
- lyricist and composer:
- Jeff Lynne
- publisher:
- EMI Blackwood Music Inc.
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