noun
concerto grosso
A Baroque musical form where a small group of soloists (concertino) alternates with the full orchestra (ripieno).
See also: コンチェルトグロッソ
バッハのブランデンブルク協奏曲は合奏協奏曲の代表例だ。
Bach's Brandenburg Concertos are a prime example of the concerto grosso.
コンチェルトグロッソ is the direct loanword from Italian, while 合奏協奏曲 is the Japanese translation. Both refer to the same musical form.
Compound of 合奏 (がっそう, 'ensemble') and 協奏曲 (きょうそうきょく, 'concerto'), likely a calque of Italian 'concerto grosso'.