I implemented the Stuart spectral glissando in a composition entitled Walking On Harbour Shores. The audio extract below depicts the elemental reflections of sunlight on the harbor water surface. This recording was done on M19 (STU), 97 keys.

Pianist Bill Risby played a spectral glissando in his improvised recording ‘One’. An audio excerpt of Risby’s spectral glissando is presented in Appendix 6a.2.

2. Abstract – High & Low registers:

The idea of a strumming by the left hand, of the low strings, selectively sustained by the sostenuto pedal came from a palm hitting technique implemented by pianist Bill Risby. abstract application activated by the pianist’s left hand, of the low frequencies sound was initially played by Sydney pianist Bill Risby, in his improvised piece ‘Native Sky’on the Stuart & Sons CD A New Voice II. Pianists Zubin Kanga and Jeff Neve have also used this sound in recordings of the Stuart & Sons soundscape. See audio these extracts Appendix 6a.3