Re: unfold and tremolo have different math

[Toine Schreurs]

See section 1.4.2 Short Repeats:

The \repeat tremolo syntax expects exactly two notes within the
braces, and the number of repetitions must correspond to a note
value that can be expressed with plain or dotted notes. Thus,
\repeat tremolo 7 is valid and produces a double dotted note, but
\repeat tremolo 9 is not.

There are two ways to put tremolo marks on a single note. The
\repeat tremolo syntax is also used here, in which case the note
should not be surrounded by braces

> The only difference between these two is the unfold/tremolo, so why  
> do they render differently?
> \version "2.11.65"
> 
> \relative c' {
>     \scaleDurations #'(2 . 3) {
>        \repeat tremolo 9 <c e g>8 \repeat tremolo 3 <c e fis>8
>        \repeat unfold 4 { \repeat tremolo 3 <c d fis>8 }
>     }
> }
> \relative c' {
>     \scaleDurations #'(2 . 3) {
>        \repeat unfold 9 <c e g>8 \repeat unfold 3 <c e fis>8
>        \repeat unfold 4 { \repeat unfold 3 <c d fis>8 }
>     }
> }

Toine Schreurs