How can I most easily apply the "AMBITUS function" (or any other) to specific measures? I have an OMN sequence (structured into measures) and would like to apply the function, for example, to measures 24 and 25 and to measure 31, while leaving the rest unchanged. Does anyone have a quick tip on the simplest way to do this?

Thx for support

André

Like this, I think.

Jesper

(setf test (ambitus '(c7 c8) mat :section '(23 24 30)))

Thanks for the hint! @jesele

There's also a more generic option.

Jesper

(maybe-section

(lambda (x) (ambitus '(c7 c8) x)) mat '(23 24 30))

(maybe-section

(lambda (x) (pitch-transpose 12 x)) mat '(23 24 30))

i will do it more LISPian, because i want to code more then AMBITUS...

so MAYBE-SECTION with lambda will fit better! Thx!

Also

(do-section '(0 1) '(ambitus '(c7 b7) x)

'((c4 d4 e4 f4 g4 a4) (c4 d4 e4 f4 g4 a4)))

(do-section '(0 1) '(chordize x)

'((c4 d4 e4 f4 g4 a4) (c4 d4 e4 f4 g4 a4)))

(maybe-section (lambda (x) (chordize x))

(maybe-section (lambda (x) (ambitus '(c7 c8) x))

'((c4 d4 e4 f4 g4 a4) (c4 d4 e4 f4 g4 a4) (c4 d4 e4 f4 g4 a4) (c4 d4 e4 f4 g4 a4))

'(1 2))

'(0 1 )

)

How about functions with more than one argument?

Jesper

I think we have to embed one into another imagining what needs to be processed first and find a suitable algo for it. Best