(a) The spectrogram of the complete recording
(b) The spectrogram of the complete recordings with blue markers superimposed on Gould’s chair creaks
Example 9. Two spectrograms of Gould’s recording of Schoenberg op. 19, no. 1
(a) The spectrogram of the complete recording
(b) The spectrogram of the complete recordings with blue markers superimposed on Gould’s chair creaks