Other musicians sought to transfer elements of Tatum's pianistic virtuosity to their own instruments. The music is sometimes vocal, sometimes orchestral and sometimes peculiarly pianistic in figuration. It is, wholly exceptionally, very well written in true virtuoso pianistic style. Lightsey was influenced by Flanagan's musical creative thinking and pianistic fluidity. It is stylistically conservative but replete with the most advanced, idiomatically pianistic passage-work. Rachmaninoff subsequently regarded Gilels as his pianistic successor, and sent him his medal and diploma. He shaped and nurtured a broad aesthetic trend in the sphere of pianistic art. His pianistic style was quite at odds with that of his fiery brother. Critics also claim that Helfgott's pianistic ability is grossly exaggerated. Sorabji's pianistic abilities have been the subject of much contention. Compared with the quartet-like theme, it is more pianistic. Fleisher stated that Kapell was "the greatest pianistic talent that this country has ever produced". He led pianistic courses in Accademia Nazionale di Santa Cecilia, Rome, and in Salzburg. Midway through his international pianistic career, Ashkenazy branched into conducting. In 1922 he joined the faculty at the Moscow Conservatory, relaunching his pianistic career.