These rare Decca advance test recording acetates document an important phase in Mark Feld's early recording career before the adoption of the Marc Bolan name. Produced by Jim Economides and recorded at Decca Studios in West Hampstead, the recordings preserve some of the earliest known professionally recorded performances associated with the future T. Rex leader. Three songs are associated with these September 1965 acetate sessions: "The Wizard", "Beyond The Risin' Sun" and "T