On Sun, 25 Apr 2010 17:31:42 0000 (UTC), Trevor Skeggs wrote:
Why should 3 not be a valid duration, mid-way between 2 and 4?
> (It would have the same value as a dotted 4).
>
> After all, if the program is going to the trouble of weeding-out
> these values and printing an error message, it may just as well
> substitute the code for a dotted 4 !
No, 3 may not substitute a dotted 4, because a dotted 4 is a longer
duration than a 3. If 1 means a whole note ("semibreve"), 2 means
half of whole note, 4 means quarter, then 3 should mean one third
(triplet minim). It is different in duration, and musically sounds
different, from a dotted crotchet.
Similarly, 6 should be a valid code equivalent to a dotted eigth-note.
Again, 6 logically should mean a triplet crotchet. It sounds very
different from a dotted quaver.
As to why 3 and 6 produce an error message, I have no idea. I'd
logically/intuitively expect them to be valid codes standing for a
triplet minim and a triplet crotchet, respectively.
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