The PasB mentions the Jack The Lad's session track as 'Rosalie', whereas Ken Garner's book The Peel Sessions calls it 'Roadie'. None of them came up on the Discogs website, so it's probably more likely the track was called Rosalee.
Peel plays a track from the latest album by Marc Bolan , whose popularity was waning at the time, as a result of two factors: his constant desire to "crack" the US market (which resulted in a lessened effort on the UK charts) and his desire to expand T. Rex's sound. This can be seen on 1973's Tanx, which included new guitar effects, chord changes, string arrangements and other studio "tricks" Bolan had not employed before.
Peel plays a track from Mrs. Elva Miller, doing an unusual cover of the Toys' A Lover's Concerto. She was usually known as "Mrs Miller" and was renowned for her awful singing, yet had a number of US chart hits in the mid-1960s, when Peel was working in American radio.