This unusual collection of music for two organs or two keyboard instruments is a fascinating demonstration of how the idiom developed under the influence of opera which, by the early 19th century, had become the dominant musical form in Italy. The graceful style galant practised by Galuppi and Bonazzi can be heard alongside Sonatas by Clementi and Cherubini, perhaps better known for their achievements in other repertoire, and the Bolognese composer, Giuseppe Busi. Organ transcriptions of symphonies, arias, marches and other such pieces by famous composers were commonplace by this time, and Canneti’s Finale for two organs from Verdi’s Aida is an entertaining example, ending with the well-known Triumphal March.