eighth note tuplet is supposed to be sixteenth notes
Is there a way to fix it so it's a sixteenth note run? Is this a bug? 2.0.3, and the nightly both do this. windows 8.1.
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AFAIK, this is expected behaviour. I.e., if you click on a whole-bar rest in 5/8 and type Ctrl+9, you'll end up with a tuplet that's based on the same denominator as the time signature - in this case, 9 quaver tuplets (nonuplets) in the time of 5 quavers (8ths).
If though, as you say, you want semiquaver (16th) nonuplets instead, then just select the whole-bar rest again and this time go to Notes>Tuplets>Other, and enter 9/10 under Type-Relation (because you want 9 semiquaver tuplets in the time of 10 semiquavers).
There are different conventions on how to choose the note value for irregular tuplets. MuseScore uses the rule espoused by Gould and others, where you always "round" up. That is, always use the next *longer* note value. Eg, the most basic triplet of three notes in the space of one beat in 4/4 time - each note is 0.33... beats long, and so we round up to use eighth notes (which are 0.5 beats long). Of course no one disagrees about that case; it's other more obscure cases where there might be disagreement. But anyhow MuseScore uses this same rule. Nine notes in the space of five beats in 5/8 time means each note is 0.55... beats long. That rounds up to 1 beat, so we use eighth notes (which are 1 beat in 5.8). Whereas if you went with eleven notes, each would be .45.., which would round up to .5, so we'd use sixteenths.
In reply to There are different by Marc Sabatella
An interesting detailed explanation of the logic, thanks Marc. That makes perfect sense to me.
The same as Marc without maths: Musescore selects a note so that in the tuplet the note is shorter than the normal duration, never longer.
Here selecting 16th notes for the tuplet would make them slightly longer (1/9 of the bar) than "normal" 16th notes (1/10 of the bar), therefore the logical choice of 8th notes for the tuplet.
This is an interpretation of the word "tuplet" which means: here we will put more notes than normally allowed by the duration.
This choice of Muscore makes sense for me because as you always need to think in the same direction in tuplets (here the note is shorter than normal) it makes music easier to read (at least I feel it like that).
In reply to The same as Marc without by frfancha
To make it even simpler: a tuplet normally squeezes more notes into a shorter time, instead of stretching out fewer notes to fill a longer time.
In reply to To make it even simpler: a by Isaac Weiss
Except in compound time where the reverse is often true (e.g. a doublet of quavers in the space of three in 6/8 time).
In reply to Except in compound time where by underquark
Good point.