Marie Jaell

Marie (Trautmann) Jaëll (17 August 1846 – 4 February 1925) was a French pianist, composer, and pedagogue. Marie Jaëll composed pieces for piano, concertos, quartets, and others, She dedicated her cello concerto to Jules Delsart. and was the first pianist to perform all the piano sonatas of Beethoven in Paris. She did scientific studies of hand techniques in piano playing and attempted to replace traditional drilling with systematic piano methods.