When Lonnie Mack’s treatment of Chuck Berry’s ‘Memphis’ broke into the US Hot 100 on 8 June 1963 and peaked at #5 during its 13-week stay, he was initially pigeonholed as an instrumental artist. This perception was heightened by ‘Down In The Dumps’ on the flip, and furthered by his double-sided instrumental follow-up whose topside, ‘Wham!’, reached #28.