   memset(grid_width, 16, sizeof(grid_width)); // default all grids to 16 beats wide
   memset(scale_notes, 0, sizeof(scale_notes)); // default all grids to major scale
   memset(channels, 2, sizeof(channels)); // default all channels to 2
-  
+
   for (uint8_t index = 0; index < GRID_SETS; index++) // default all the last layers to channel 10 for mt32 drum channel
   {
-    channels[LAYERS-1][index] = 10;
-  }
-  
-//  load();
+    channels[LAYERS-2][index] = 10;
+  }
+
+  //  load();
 
   eScaleOffset.setBounds(0, 44 * 4 + 3); // Set note offset limits
   eScaleOffset.setValue(noteOffset[layer][visible_grid_set] * 4);              // *4's for encoder detents

// todo stuff for performance layer
/*
void OnNoteOn(byte channel, byte note, byte velocity)
{
  note = note - LOWNOTE;
  untztrument.setLED(untztrument.xy2i(note % WIDTH, note / WIDTH));
}

void OnNoteOff(byte channel, byte note, byte velocity)
{
  note = note - LOWNOTE;
  untztrument.clrLED(untztrument.xy2i(note % WIDTH, note / WIDTH));
}

void setup() {
  pinMode(LED, OUTPUT);
#ifndef HELLA
  untztrument.begin(addr[0], addr[1], addr[2], addr[3]);
#else
  untztrument.begin(addr[0], addr[1], addr[2], addr[3],
                    addr[4], addr[5], addr[6], addr[7]);
#endif // HELLA
#ifdef __AVR__
  // Default Arduino I2C speed is 100 KHz, but the HT16K33 supports
  // 400 KHz.  We can force this for faster read & refresh, but may
  // break compatibility with other I2C devices...so be prepared to
  // comment this out, or save & restore value as needed.
  TWBR = 12;
#endif
  untztrument.clear();
  untztrument.writeDisplay();
  usbMIDI.setHandleNoteOff(OnNoteOff);
  usbMIDI.setHandleNoteOn(OnNoteOn);
}

void loop() {
  unsigned long t = millis();
  if((t - prevReadTime) >= 20L) { // 20ms = min Trellis poll time
    if(untztrument.readSwitches()) { // Button state change?
      for(uint8_t i=0; i<N_BUTTONS; i++) { // For each button...
        // Get column/row for button, convert to MIDI note number
        uint8_t x, y, note;
        untztrument.i2xy(i, &x, &y);
        note = LOWNOTE + y * WIDTH + x;
        if(untztrument.justPressed(i)) {
          usbMIDI.sendNoteOn(note, 127, CHANNEL);
          //untztrument.setLED(i);
        } else if(untztrument.justReleased(i)) {
          usbMIDI.sendNoteOff(note, 0, CHANNEL);
          //untztrument.clrLED(i);
        }
      }
      
    }
    prevReadTime = t;
    digitalWrite(LED, ++heart & 32); // Blink = alive
    
    usbMIDI.read(2);
    untztrument.writeDisplay();
  }
  while(); // Discard incoming MIDI messages
}
*/




  case PLAYING_ERASE_C_2:
    {
      for(uint8_t row_index=0; row_index < grid_width[visible_grid_set]; row_index++) 
      {
        line_horz(row_index, false);
      }
      mode =  PLAYING;
      break;  
    }

  case PLAYING_ERASE_MEASURE_2:
    {
      for(uint8_t column_index=0; column_index < GRID_WIDTH; column_index++) 
      {
        line_vert(column_index, false);
      }
      mode =  PLAYING;
      break;  
    }

  default:
