He was an English pianist, composer and conductor, known for his appearances on the BBC, mainly on radio and known by his stage name Semprini.
In 1938 he was taken at the Radio as director of a rhythm-symphony orchestra; and inaugurated the series of famous "Concerts Cora".
In Italy he performed a broad range of music, from pop to jazz and classical, and in 1938 led his first radio orchestra in Italy.
Semprini raised thousands of pounds for charity over the years. This last concert at the Mercury was given to raise money for Soroptomist charities.
He began his career in pop music in 1934, with some jazz concerts. Shortly after, with his colleague Bormioli he created a piano duo specializing in modern rhythms, and held a long series of shows in Italian and foreign theaters.