The whole of the Orchestra of the Royal Opera-house at Stuttgart in Wurtemberg, testified individually as follows:

“That Mr Jackson’s discoveries and his gymnastics for the fingers and wrist must certainly conduce to a quick and sure attainment of a solid and a lasting execution upon the pianoforte, as also upon stringed and wind instruments, that they are new and eminently practical, and deserve to be everywhere adopted.”


From Edward J. Hopkins, Organist to the Hon. Societies of the Inner and Middle Temple.

Sept. 13th, 1865.

“Mr Jackson has been so good as to explain to me —and to exhibit, his apparatus and course of exercises for developing and strengthening the muscles and powers of the hand, which I firmly believe are calculated to be of very considerable importance to all practitioners upon musical instruments.”