An important characteristic of contemporary art music has been the use of conventional instruments in unconventional ways, achieving effects undreamed of or thought impossible in the early twentieth century. Yet many of these techniques remain poorly understood with respect to both the physical procedures involved and the results in sound output. This compendium codifies these techniques, explains their production in terms of idiomatic peculiarity and limitations, and cites representative scores in which the new devices form an integral part of the composer's sonoric concepts. Citations and numerous printed examples are taken from an international selection of works by the most advanced and significant composers. Part One considers techniques and procedures that, with only slight modification, apply to all instruments: extended ranges, muting, glissandi, harmonics, percussive effects, microtones, amplification, and extramusical devices. Part Two is devoted to idiomatic techniques with
