Brandenburg Concerto No. 5 as concerto grosso: the first, third and sixth of these concertos have however no concertino versus orchestra distinction. The concerto grosso was a Roman invention, typically featuring two violins and a cello as concertino, with a string orchestra of multiple string instruments per part. Venetian composers seemed slow in adopting the genre, and as Bach and his German contemporaries rather turned to Venetian music they may have been hardly aware of it. The fifth "Brandenburg Concerto" seems intended to be performed with one instrument per part, as to not overpower the harpsichord with its relatively restrained volume, and was not
Twelve Concertos, Op. 7 (Vivaldi) RV Anh. 142 (formerly RV 464); and No. 9 in B-flat major for violin, RV Anh. 153 (formerly RV 373). Twelve Concertos, Op. 7 (Vivaldi) A set of twelve concertos was published by Estienne Roger in 1716-1717 under Antonio Vivaldi's name, as his Opus 7. They were in two volumes, each containing concertos numbered 1-6. Of the set, ten were for violin solo; the other two were for oboe solo. The authenticity of some of the works included has long been doubted by scholars. Three are now considered spurious (i.e. not in fact by Vivaldi) for stylistic reasons. They are: