Original: As well as these principal conductors , the orchestra has had several notable guest conductors , including Arturo Toscanini , who made a series of commercial recordings with the orchestra in Queen 's Hall from 1937 to 1939 , which were released by His Master 's Voice in the UK and RCA Victor in the US .
Simplified: As well as these principal conductors there have been others , including the famous Arturo Toscanini , who made a series of recordings with the orchestra in the Queens Hall from 1937 to 1939 .