Brandenburg Concertos been debated what instrument Bach had in mind for the "fiauti d'echo" parts. Nowadays these are usually played on alto recorders, although traverse flutes are sometimes used instead: it is also theorized Bach's original intent may have been the flageolet. In some performances, such as those conducted by Nikolaus Harnoncourt, the two recorders are positioned offstage, thus giving an "echo" effect. Bach adapted the 4th Brandenburg concerto as a harpsichord concerto, BWV 1057. Title on autograph score: Concerto 5 à une Traversiere, une Violino principale, une Violino è una Viola in ripieno, Violoncello, Violone è Cembalo concertato. "Concertino": harpsichord, violin,
Organ concertos, Op. 7 (Handel) ornamentation supplied by Smith and have been recorded by Erato. Two modern performing editions of the concertos by the organists and musicologists Peter Williams and Ton Koopman provide missing movements and give suggestions for the ad libitum passages, possibly too earthbound according to some commentators. The recordings of the organists George Malcolm (1976) and Richard Egarr (2009) give further possibilities, which have so far not appeared in printed editions. Organ concertos, Op. 7 (Handel) The Handel organ concertos Op 7, HWV 306–311, refer to the six organ concertos for organ and orchestra composed by George Frideric Handel in London between