[JW Lua] Changing playback speed

[Pat Rice]

With the advent of Finale 25 the Tempo Tool has been deprecated. All
capabilities of that tool have been incorporated into other tools EXCEPT FOR
ONE and I'm looking for a way to program that with JWLua. My problem is that
I don't know much about MIDI and how tempi are implemented in Finale. The
feature that is no longer available has to so with increasing or decreasing
a tempo by a certain percentage over a span of measures. The new midi tool
allows you to set a % change, but doing so overrides the playback tool. It
only works with fixed expressions. What I want is to be able to vary the
starting playback tempo using the number in the playback tool and have that
tempo increase or decrease at a given point by a given percentage. An
example of where this applies is in Renaissance music where the tactus
changes from duple to triple in a sesquialtera or triple relationship, 3/2
or 3/1, +200% or +300%. Is this even possible with JWLua and if so, where do
I start looking?

Pat

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