Move Change: notice closer to the bottom of the tune graphic. I was using \begin{center}..\end{center} to centre the tune graphic, followed by the change notice, if any. But this leaves a paragraph gap after the center section and hence a gap between tune graphic and change notice. Change to use figures to position the graphic, include the change notice as a caption, and use {\centering} around the image to centre just the image.

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−X: 1
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−T: Sonny Brogan's Mazurka
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−M: 3/4
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−L: 1/8
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−R: mazurka
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−K: Dmaj
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−|: FG | A2 AG FA | d2>A2 BA | G2 GB AG |
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−| FG EF DF | A2 AG FA | d2>A2 BA | G2 Gg fe | d4 :|
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−|: e2 | f2 fa gf | e2 eg fe | d2 df ed | cd Bc A2 |
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−| f2 fa gf| e2 eg fe | dc df ec | d4 :|