 There are also cello concertos, which are orchestral pieces that feature a solo cellist accompanied by an entire orchestra.There are numerous cello concertos – where a solo cello is accompanied by an orchestra – notably 25 by Vivaldi, 12 by Boccherini, at least three by Haydn, three by C. P. E. Bach, two by Saint-Saëns, two by Dvořák, and one each by Robert Schumann, Lalo, and Elgar.There were also some composers who, while not otherwise cellists, did write cello-specific repertoire, such as Nikolaus Kraft who wrote six cello concertos.