…e,\6 \harmonicByRatio #3/4 e,\6\stopTextSpan \break %fourth harmonic \override TextSpanner.bound-details.left.text = \markup\…
…6\startTextSpan \harmonicByRatio #1/6 e,\6\stopTextSpan \break %sixth harmonic \override TextSpanner.bound-details.left.text = \markup\…