帮助文档的说明:
Notes: For TimeSigs higher than
4/4, each bar will be spread out
over 2 or more bars
(eg. 5/4 will be written as 3/4+2/4).
Note2: For 12/8 or 6/8, use 4/4 with
a style using a triplet feel (eg. Irish).
For 9/8 use a waltz with a triplet feel.
