TauG-guidance of transients in expressive musical performance
Schogler, B., Pepping, G. & Lee, DN. (2008). TauG-guidance of transients in expressive musical performance. Experimental Brain Research,189(3), 361-372. Germany: Springer. Retrieved from https://doi.org/10.1007/s00221-008-1431-8
The sounds in expressive musical performance, and the movements that produce them, offer insight into temporal patterns in the brain that generate expression. To gain understanding of these brain patterns, we analyzed two types of transient sounds, and the movements that produced them, during a vocal duet and a bass solo. The transient sounds studied were inter-tone f0(t)-glides (the continuous change in fundamental frequency, f0(t), when gliding from one tone to the next), and attack intensity-glides (the continuous rise in sound intensity when attacking, or initiating, a tone). The temporal patterns of the inter-tone f0(t)-glides and attack intensity-glides, and of the movements producing them, all conformed to the mathematical function, τG(t) (called tauG), predicted by General Tau Theory, and assumed to be generated in the brain. The values of the parameters of the τG(t) function were modulated by the performers when they modulated musical expression. Thus the τG(t) function appears to be a fundamental of brain activity entailed in the generation of expressive temporal patterns of movement and sound.
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