Groundwork for a resource in computational hearing for extended string techniques

Extended techniques and signal processing devices are in-creasingly common in contemporary music composition and performance.At present, few machine listening methods deal reliably with extendedtechniques. Moreover, existing instrumental corpora have not tradition-ally included sources of variation that arise naturally in every-day per-formance environments. In the current study, timbral descriptors areextracted for a range of instrumental techniques, and their dispersion isquantified in order to examine the variation stemming from recordingstrategy choice and performer repetition.