1963
https://archive.org/details/C_1960_XX_XX
John Corigliano, the music director of WBAI interviews percussionist Max Neuhaus about his work interpreting and performing Karlheinz Stockhausen's work Zyklus. Although Stockhausen originally intended the piece to be played spontaneously, most percussionist found that the range of instruments the piece called for, (twenty one) to be too unwieldy to make a spontaneous performance possible. However after consulting with Stockhausen and spending months practicing Neuhaus finally managed to perform the piece satisfactorily.