concerto
Concise Oxford English Dictionary © 2008 Oxford University Press:
concerto /kənˈtʃəːtəʊ, -ˈtʃɛːtəʊ/
▶noun (pl. concertos or concerti) a musical composition for a solo instrument accompanied by an orchestra.
– origin C18: Ital., from concertare ‘harmonize’.
'concerto' also found in these Oxford entries:

