…analysis brackets through the text property of the HorizontalBracketText grob. Adding different texts to brackets beginning at …
…bracket_engraver" \override HorizontalBracket.direction = #UP } } { \once\override HorizontalBracketText.text = "a" c''\startGroup d''\stopGroup \once\override … …text "a" \startGroup d''\stopGroup e''-\tweak HorizontalBracketText.text "a'" \startGroup d''\stopGroup\stopGroup | c''-\tweak HorizontalBracketText.text foo \startGroup d'' e'' f'' | \break g'' …