Partitas and other pieces
The pianist/harpsichordist/organist may be a specialist in early music or in the contemporary repertoire. This can include 20 concertos or more, most of Beethovens 32 Sonatas, many of Bachs 48 Preludes and Fugues, plus Suites, Partitas and other pieces which are standard repertoire, Mozart and Schubert sonatas, many works by Chopin, Schumann, Brahms and Liszt, much of Debussy and Ravel etc. Many professional soloists have to keep a large repertoire in their fingers. There is also the sheet music for piano need to keep a repertoire going. One could argue that his intellectual processes must still be involved, whether he is conscious of them or not. Not everyone would agree, however, and to quote the American pianist, John Browning, Students often seem to think that there is some secret formula that the masters use to learn a work.
