Action for Transpose MIDI?

ThinAirX

I looked but couldn’t find any way to create a widget to change the Transpose setting in MIDI sources? Is there a way?

My case: I play clarinet through effects and loops and, at the same time, play keyboards to control AU synths (all in Loopy). I have a Bb clarinet and an A clarinet, and to avoid weird key signatures and confusion, I transpose the MIDI coming from the keyboards to Bb or A, depending on which clarinet I’m using. Sometimes I need to set them back to concert pitch. Now I have to change the settings manually. Is there a way to automate that?

wim

@ThinAirX said:
I looked but couldn’t find any way to create a widget to change the Transpose setting in MIDI sources? Is there a way?

My case: I play clarinet through effects and loops and, at the same time, play keyboards to control AU synths (all in Loopy). I have a Bb clarinet and an A clarinet, and to avoid weird key signatures and confusion, I transpose the MIDI coming from the keyboards to Bb or A, depending on which clarinet I’m using. Sometimes I need to set them back to concert pitch. Now I have to change the settings manually. Is there a way to automate that?

That would require a Mozaic or Streambyter script to do the transposition. There could be some other apps that would work too.

wim

Here's a streambyter script I did just to dust off my Streambyter memory. Tapping the circle thingy at the bottom right of the script exposes three buttons for selecting the transpose value. A simple way of using the script would be to save one preset with one of the buttons selected for each. Then you can select the preset as needed with an action.

(Should be pretty easy to modify if I screwed up the logic of which way to transpose. 🫤)

# Transpose midi input to scale for wind instruments

IF LOAD
  # configure the widgets
  SET Q0 C +TOGGLE
  SET Q1 B_b +TOGGLE
  SET Q2 A +TOGGLE
  SET Q3 +HIDE
  SET Q4 +HIDE
  SET Q5 +HIDE
  SET Q6 +HIDE
  SET Q7 +HIDE
  
  # use the P(recision) array for signed integers
  ALIAS P0 TRANSPOSE
  
  # assign widget initial values
  ASS Q0 = 1 0 0
  ASS TRANSPOSE = 0
END

# make the buttons act like radio buttons
IF M0 == F0 7D 01 00
  ASS Q0 = 1 0 0
  ASS TRANSPOSE = 0
END
IF M0 == F0 7D 01 01
  ASS Q0 = 0 1 0
  ASS TRANSPOSE = -2
END
IF M0 == F0 7D 01 02
  ASS Q0 = 0 0 1
  ASS TRANSPOSE = -4
END

IF M0 < A0
  SET LB0 M01 +N
  MAT P1 = M01 + TRANSPOSE
  
  # Check if transposed note is out of range
  IF P1 < 0
    SET LB1 S-
    BLOCK
    EXIT
  END
  IF P1 > $127
    SET LB1 S-
    BLOCK
    EXIT
  END
  
  ASS M1 = P1
  SET LB1 M01 +N
END

wim

I see a number of Mozaic scripts that could be used for this too. Search for "transpose" on the page if your browser allows it. https://abwiki.loopypro.com/doku.php?id=mozaic_scripts_list

wim

😂 I was so itching to geek out that I forgot the most simple / obvious answer: mfxStrip.

ThinAirX

That worked! I found I already had mfxStrip in my cache of apps. I made three MIDI sources, one for each of my keyboards, and put a different instance of mfsStrip in each. Then set the destinations for the softsynths. I made a button to change the parameter within mfxStrip.

Yay!

Steve