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Change score semantics to [(Time, Duration, a)], i.e. remove Maybe #13

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hanshoglund opened this issue Mar 29, 2013 · 2 comments
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Change score semantics to [(Time, Duration, a)], i.e. remove Maybe #13

hanshoglund opened this issue Mar 29, 2013 · 2 comments
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May 2013

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@hanshoglund
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I think we should instead let the user decide if they want rests in their score tranformer stack. We could say type RestT = Maybe.

Accordingly change type of

rest :: Default a => Score a

This would remove the need for perform and possibly simplify other things too. However there might be consequences.
@hanshoglund
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Let us call the old and new semantics Score and Score2. Note that Score a and Score2 (Maybe a) are equivalent in every respect.

Maybe will be a standard part of the note transformer stack (with the optional alias type RestT = Maybe).

hanshoglund added a commit that referenced this issue May 31, 2013
@hanshoglund
Change score semantics, part I
a772e5f 
Big refactoring, see #13 for details
Basic instances and combinators fixed
Remaining work: add Maybe (RestT) instances to transformer stack
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See also #1.

@hanshoglund hanshoglund mentioned this issue Jun 2, 2013
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