> On 5 Nov 2016, at 00:03, David Wright <lily...@lionunicorn.co.uk> wrote:
>>> Mairi's Wedding is completely regular; it has five 8-bar >>> sections, which happens to sum to 40: >> >> But they have to play it A B A B B, where each letter is a 8-bar section. > > For that original tune, that's the usual sequence. But why "But"? > Lots of tunes are expanded by repeating an 8-bar phrase if they're > shorter than the dance demands. The dancers couldn't care less so > long as the music changes after the correct number of bars. > The next tune (you need several if you're not going to bore people > with eight times through) might be a tune that has a different > length and structure. Then there are loads of 48-bar and 64-bar > dances. None of this variation makes a dance irregular. > > There's a useful introduction at > http://trillian.mit.edu/~jc/music/abc/Scotland/PlayingForSCD.html It is an irregularity that has to be compensated for, as this your link. Tunes with sections not a power of two occurs in Swedish folk music, for example this polska after Höök Olle (in 3/4). https://www.youtube.com/watch?v=WGWpQVvjBrU _______________________________________________ lilypond-user mailing list lilypond-user@gnu.org https://lists.gnu.org/mailman/listinfo/lilypond-user