Allow blocks of internally-repeated measures

For folk music with 8 or 16 bar phrases, of which the first, say, 2 measures repeat twice, informal notation often permits two choices to avoid unnecessary duplication. Played structure: A1 A2 A1 A2 A3 A4 A5 A6. Notated structure: [A1 A2] A3 A4 A5 A6 Informal notations: A) A repeat line over the two measure that only operates locally and always plays back in full. The Swedes call this "bis" ("twice"). -- or -- B) A double-dotted (4-dots) start repeat bar at the beginning, followed by a normal end repeat after two bars, and then another end repeat after the full 8 or 16 bar phrase. This is very common in shaped-note hymnals. Attempts to work around this with unnumbered or custom repeat lines doesn't work well with playback options, since these repeats should always play back being local) whether or not the full 8 or 16 bar line that contains it should repeat after a "da capo".

Comments (2) Features , repeat, bis, double-dotted, hymnal