refactor: not overlaping keyboard and midi

default/frag8.glsl

@@ -14,16 +14,16 @@ out vec4 fragColor;
 uniform sampler2D iTex11;
 uniform sampler2D iTex0;
 uniform int iSeed8;
-uniform vec3 iMidi2_3[7];
-uniform vec3 iMidi3_1[2];
+uniform vec3 iGroup2_3[7];
+uniform vec3 iGroup3_1[2];
 uniform int iDemo;
 uniform int iAutoRand;
 
 void main() {
-    vec4 color = fx_stage(vUV, iTex11, iTex0, iSeed8, iMidi2_3[0], iMidi2_3[1].xy, iMidi2_3[2], iMidi2_3[3].xy, iMidi2_3[4], iMidi2_3[5].xy, iMidi2_3[6]);
+    vec4 color = fx_stage(vUV, iTex11, iTex0, iSeed8, iGroup2_3[0], iGroup2_3[1].xy, iGroup2_3[2], iGroup2_3[3].xy, iGroup2_3[4], iGroup2_3[5].xy, iGroup2_3[6]);
 
     if (iDemo < 1 && iAutoRand < 1) {
-        color = mix(color, vec4(0), iMidi3_1[0].y);
+        color = mix(color, vec4(0), iGroup3_1[0].y);
     }
 
     fragColor = color;