Re: \repeat unfold behavior

[David Kastrup]

"Christopher R. Maden" <address@hidden> writes:

> On 08/04/2011 01:21 PM, Patrick Karl wrote:
>> I discovered that the \repeat unfold 2 in:
>> 
>> \relative a' { \repeat unfold 2 {a' b c} }
>> 
>> is not equivalent to:  a' b c   a' b c
>> 
>> but rather to:                a' b c   a b c
>> 
>> That surprised me.  I have not been able to find any documentation in
>> Notation about this behavior.
>
> The opposite would have surprised me; if my repeats climbed an octave on
> every iteration, it would make life difficult.  I’d run out of buttons
> on my concertina pretty quickly. (-:
>
> Without delving into the internals, I have a very strong suspicion that
> the notes are given their absolute pitch before the repeat is unfolded.
>  If you want to climb an octave with each iteration, you’ll need to
> explicitly say so or write some kind of function.

blurb = {a' b c}
\new Voice { \time 3/4 \relative a' { \blurb \blurb }
             \relative a' \repeat unfold 2 \blurb }

The difference _is_ interesting.

-- 
David Kastrup