Richard Thompson, the drummer in this rehearsal session is responsible for the preservation of what has been described as ...the most important pre-Queen recording. The recording was made on a small Fidelity two-track recorder which Thompson had owned for about ten years. Thompson made the recording so that he could learn the song before the group's concert at Ealing College. Thompson recalls that the song Green had a ...straightforward 4/4 in the middle, but we needed to learn the beginning and end of it. It had a weird beginning. Most of Freddie's songs were like that... John S.Stuart's and Andy Davis' review of this recording describe Green as ...a melodic, medium-paced ballad, whose tone recalls that obscure Queen delight "Mad The Swine" and ...some of the more reflective material [Mercury] wrote toward the end of his life... This rehearsal session was apparently an extended one, Thompson was exhausted and Mercury had practically lost his voice, the group also had to consider the other flatmates in Ferry Road and as a result Mercury can be heard singing in a hushed manner...Mike Bersin can be heard strumming along on an unplugged electric guitar. Only John Taylor's bass is amplified, while Richard Thompson keeps time by tapping on a practise pad... the recording ends when a flatmate interrupts complaining that it is one o'clock in the morning.