Laura Conrad said:
> I was reminded by a discussion on another list that one convention in
> printed music is that if the key signature changes, the former
> signature is first cancelled by use of naturals, and then the new key
> signature is written.
>
> There are a couple of ways to implement this convention. The
> old-fashioned rule is to always do it. A more modern rule is to do it
> only if the new signature has fewer sharps or flats than the old one.
>
> I don't believe that abc2ps uses either rule. Does any ABC program?
The convention is implemented in ABC2Win with naturals entered for all
items not shown in the new signature.
Their is some discussion about key signature changes in a concise
book on notation that I purchased recently. It says that cancellations are
no longer necessary unless the new key is C or Am. It also mentions a
preference that signature changes occur on a new staff with a courtesy
key signature at the end of the previous staff and that staff left open (no
bar at the end). In either case, a double bar line should precede the new
signature.
The book is by Tom Gerou and Linda Lusk. It is the "Essential
Dictionary of Music Notation" published by Alfred Publishing Co. in L.A.
in 1996.
Jim Vint
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