Conversation so far:
Who were notable Royal Philharmonic Orchestra members?
Among the well-known musicians who have been Royal Philharmonic Orchestra principals include Steven Staryk, Raymond Cohen, Alan Loveday, Erich Gruenberg, Barry Griffiths, Jonathan Carney and Frederick Riddle.
When were some Royal Philharmonic Orchestra members promoted to principal and in what year?
Royal Philharmonic Orchestra principals in the mid-1950s and later, including Steven Staryk (leader, 1957–59), Raymond Cohen (leader, 1959–66),Alan Loveday (leader, 1967–71), Erich Gruenberg (leader, 1972–76)
Who else was a part of the Royal Philharmonic Orchestra if listed besides Steven Staryk, Raymond Cohen, Alan Loveday, Erich Gruenberg, Barry Griffiths, Jonathan Carney, and Frederick Riddle?
Royal Philharmonic Orchestra's Chief conductors have been Walter Weller, André Previn, Vladimir Ashkenazy, Yuri Temirkanov and Daniele Gatti.
What was the last year of a notable Royal Philharmonic Orchestra conductor?
Sir Thomas Beecham conducted the Royal Philharmonic Orchestra in his last concert, given at Portsmouth Guildhall on 7 May 1960.
What was some of the things Royal Philharmonic Orchestra members did during those years?
The Royal Philharmonic Orchestra toured the United States in 1950, the first British orchestra to visit America since the London Symphony Orchestra in 1912.

Question: What other recording did other artist record or release?
Self-contained rewrite: What other Royal Philharmonic Orchestra recording did other artists record or release besides Beecher's Orchestra?