For music lovers, some numbers are inextricably linked to a particular composer or genre: with Beethoven, it is 32, the number of piano sonatas with opus numbers. Three sonatas in minor keys have been selected from opuses comprising several independent works by Tamás Érdi, of whose playing Zoltán Kocsis said: "His touch on the keyboard is far more sensitive than that of sighted people. In his playing, in certain dynamic ranges there is a sensitivity that for us is simply not possible. I would go so far as to say that this ability could be gauged as Chopinesque." Pianist Tamás Érdi lost his eyesight as a result of an oxygen overdose in a defective incubator. His interest in music was discovered at a very young age. His teachers use a unique method called "the structural method" to teach Tamás play the piano, whereby he virtually "recomposes" the music he is introduced to.