** condition: Fine ** Catalogue of the "4 pianoforti" exhibition at Palazzo delle Esposizioni in Rome, 1999 with Charlemagne Palestine, Philip Glass, Terry Riley and Michael Harrison, including photos, notes on the compositions, interviews and biographies (58 pages, both in English and Italian). Each of the 4 artists had a solo evening to perform a concert of their music and they got together on the fifth night for a unique minimal-piano-music jam session. The 58-page book also includes an essay titled “Short History Of Minimal Music”.