When I try to create a ChoirStaff brace around two staves one of which is a TabStaff I get two braces:
8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8>< \version "2.20.0" music = { c''1 } \score { << \new ChoirStaff << \new TabStaff = "Part 1" << \music >> \new Staff << \new Voice { \music } >> >> >> } 8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8><8>< If I replace TabStaff with Staff in the above, all is well. Can anyone shed light on this? Richard Shann