I learned recently that time signatures can be fractional in the top number. For example, 2.5/4 meter.
For normal time signatures, they have integer grouping structures. For example,
- 4/4 meter has a grouping 1-1-1-1
- 3/4 meter has a grouping 1-1-1
- 6/8 meter has a grouping 3-3
and so forth.
Notice, in each case for these common meters, the groups contain integers.
Can beats in fractional meters be grouped? If so, are the numbers used in the groupings integers or can they involve non-integers (e.g. fractions)?
So might 2.5/5 be grouped like 1-1-1/2?