midiStuffInKodelife.glsl

uniform sampler2D midi;

vec2 midiCoord(float offset)
{
    float x = mod(offset,32.);
    float y = offset / 32.;
    return vec2(x,y)/32.;
}

float getMidi(float number){

  float num = 3. * 127. + number;
  texture2D(midi, (midiCoord(num)));
  return texture2D(midi, (midiCoord(num))).x;
}

// using
    float one = 3. * 127. + 1.;
    float two = 3. * 127. + 2.;

    float four = 3. * 127. + 4.;
    float five = 3. * 127. + 5.;
    float six = 3. * 127. + 6.;
    
    //now we can use texture2D and midiCoord to pull r, g, and b values fro the 4th dimension of the sample
    float speed = 1-texture2D(midi,midiCoord(one)).w;