In terms of Planck’s quantum physics, the pianist and his black instrument act and function as an “ideal black body”: this is the basis of the concept for the composition “Radiazione di corpo nero” by Teresa Carrasco. In physics, this “black-body radiation” denotes a specific emitted spectrum of radiation. But in and with “Radiazione di corpo nero”, Teresa Carrasco doesn’t engage in physics, but music. “All frequency spectra of the piece”, she writes, in which she also includes the spatial distribution of sounds, “are influenced by the pianist’s temperature, position and movement and by the experimental work with the multiple possibilities of the grand piano as a resonant body.”