Figure 5.19  Black Rabbit clip

The spectrogram in the book was created from a microphone recording of a portion of a YouTube video.  The following spectrogram, which is quite similar, was obtained from a commercial recording by Peter Mulvey of Black Rabbit.

The arrows point to the fundamentals for the 3rd and 4th harmonics, respectively.  You can listen to the recording on Spotify.  The clip begins at 2:19.

You can buy the recording from Amazon, or iTunes, or Spotify.