In response to Carlos Rodriguez Braun's query about Borges, Mill and music: "And it is very characteristic both of my then state, and of the general tone of my mind at this period of my life, that I was seriously tormented by the thought of the exhaustibility of musical combinations. The octave consists only of five tones and two semitones, which can be put together in only a limited number of ways, of which but a small proportion are beautiful: most of these, it seemed to me, must have been already discovered, and there could not be room for a long succession of Mozarts and Webers, to strike out as these had done, entirely new and surpassingly rich veins of musical beauty." John Stuart Mill, *Autobiography*, Chapter V [The Collected Works of John Stuart Mill, Vol. I, p. 149] Guido Erreygers