Giovanni Battista Viotti
Giovanni Battista Viotti (1755-1824) was an Italian composer and violinist.
He wrote a number of sonatas, string quartets and also 29 complete violin concertos. Of these, two are still particularly well known, and piano accompaniment tracks for both Viottis Violin Concerto No.22 and No.23 can be found on this website. Links for the works are below.