1968-12-04   [  A  ]         Studio 2 & Control Room 2, EMI Studios, Abbey Road, London, England    Pink Floyd – Ummagumma
Recording sessions Ummagumma

Members:
David Gilmour – Guitar, Vocals
Nick Mason – Drums
Roger Waters – Bass, Vocals
Richard Wright – Keyboards, Vocals

Tracks:
01 – I Am The Embryo (Embryo) – take 1 voals, organ and piano overdubbed
02 – One Night Stand (Summer ’68) – takes 1 – 4 recorded (take 4 marked ‘best’); take 4 organ, vocals, guitar and piano overdubbed and rough remixed

Audio recordings (lineage):
[ STU ] A Tree Full Of Secrets– CD 3, track 2 (Unknown lineage)