Old Swing-Master/Master

Old Swing-Master/Master Chicago post–World War II blues label. The label was opened in early 1949 by Egmont Sonderling (1906–1997), who owned a pressing plant and a recording studio. Serving as frontman and A&R chief was Chicago deejay Al Benson (1908–1978), whose broadcast handle gave the label its name. Benson did no new productions for Old Swing-Master, whose modus operandi was to issue masters obtained from other independents. Most of its releases were acquired from small Chicago operations…