約拿單
Roger Coulam (keyboards) formed the band in the autumn of 1969, with American-born Madeline Bell (vocalist), Roger Cook (vocalist), Alan Parker (guitarist), Herbie Flowers (bassist), and Barry Morgan (drummer). Most of the songs were written by Cook and Roger Greenaway. Flowers, Morgan and Parker all worked with Coulam at London's Morgan Studios. The four of them recorded several backing tracks, with which Coulam approached Bell and Greenaway, (who had been half of David and Jonathan), as vocalists. Greenaway declined, but put forward Cook (the other half of David and Jonathan).