The 12 March auction of the Jim Irsay Collection at New York Christie’s included a Jim Morrison microphone, $120,650, notebook, $266,700, James Brown cape, $152,400, The Beatles signed break-up affidavit, $161,500, amp, $609,600, Hey Jude handwritten lyrics, $1,016,000, John Coltrane saxophone, $431,800, Miles Davis trumpet, $1,651,000, Ringo Starr drum, $2,881,000, Bob Dylan The Times They Are A-Changin’ handwritten lyrics, $2,515,000, guitars from Johnny Cash, $215,000, Paul McCartney, $288,600, George Harrison, $279,400, $2.271 million, Janis Joplin, $381,000, Prince, $635,000, Chet Atkins, $1.27 million, John Lennon, $1.27 million (and piano, £3.247 million), Eric Clapton, £3.003 million, $4.01 million, Kurt Cobain, $6.907 million, Jerry Garcia, $11.56 million, and David Gilmour’s ‘Black Strat’ guitar that went for a world-record $14.55 million (as well as an acoustic guitar for $2,393,000). ★ A 30 April sale…