Q:Given the following context:  Elgar's recordings were released on 78-rpm discs by both HMV and RCA Victor. After World War II, the 1932 recording of the Violin Concerto with the teenage Menuhin as soloist remained available on 78 and later on LP, but the other recordings were out of the catalogues for some years. When they were reissued by EMI on LP in the 1970s, they caused surprise to many by their fast tempi, in contrast to the slower speeds adopted by many conductors in the years since Elgar's death. The recordings were reissued on CD in the 1990s.In November 1931, Elgar was filmed by Pathé for a newsreel depicting a recording session of Pomp and Circumstance March No. 1 at the opening of EMI's Abbey Road Studios in London. It is believed to be the only surviving sound film of Elgar, who makes a brief remark before conducting the London Symphony Orchestra, asking the musicians to "play this tune as though you've never heard it before." A memorial plaque to Elgar at Abbey Road was unveiled on 24 June 1993.A late piece of Elgar's, the Nursery Suite, was an early example of a studio premiere: its first performance was in the Abbey Road studios. For this work, dedicated to the wife and daughters of the Duke of York, Elgar once again drew on his youthful sketch-books. In his final years, Elgar experienced a musical revival. The BBC organised a festival of his works to celebrate his seventy-fifth birthday, in 1932. He flew to Paris in 1933 to conduct the Violin Concerto for Menuhin. While in France, he visited his fellow composer Frederick Delius at his house at Grez-sur-Loing. He was sought out by younger musicians such as Adrian Boult, Malcolm Sargent and John Barbirolli, who championed his music when it was out of fashion. He began work on an opera, The Spanish Lady, and accepted a commission from the BBC to compose a Third Symphony. His final illness, however, prevented their completion. He fretted about the unfinished works. He asked Reed to ensure that nobody would "tinker" with the sketches and attempt a completion of the symphony,...  answer the following question:  What was reissued by EMI in the 1970s?
A:
Elgar's recordings