diff --git a/firmware/Rhythm/Rhythm.ino b/firmware/Rhythm/Rhythm.ino
index a6a028f..b4e33a4 100644
--- a/firmware/Rhythm/Rhythm.ino
+++ b/firmware/Rhythm/Rhythm.ino
@@ -475,29 +475,46 @@ void DisplayMainArea() {
 
   if (selected_slot > 0) {
     PatternState &p = patterns[active_pattern];
+    int act_val = 0;
+    switch (current_param) {
+      case PARAM_KICK_DENS: act_val = p.inst_density[0]; break;
+      case PARAM_SNARE_DENS: act_val = p.inst_density[1]; break;
+      case PARAM_HIHAT_DENS: act_val = p.inst_density[2]; break;
+      case PARAM_CHAOS: act_val = p.chaos_amount; break;
+      case PARAM_MAP_X: act_val = p.map_x; break;
+      case PARAM_MAP_Y: act_val = p.map_y; break;
+      default: break;
+    }
+
+    if (!editing_param) {
+      if ((int)cv1_dest == (int)current_param + 1) act_val += cv1_val / 4;
+      if ((int)cv2_dest == (int)current_param + 1) act_val += cv2_val / 4;
+      act_val = constrain(act_val, 0, 255);
+    }
+
     switch (current_param) {
     case PARAM_KICK_DENS:
-      mainText = String(map(p.inst_density[0], 0, 255, 0, 100)) + "%";
+      mainText = String(map(act_val, 0, 255, 0, 100)) + "%";
       subText = "KICK DENS";
       break;
     case PARAM_SNARE_DENS:
-      mainText = String(map(p.inst_density[1], 0, 255, 0, 100)) + "%";
+      mainText = String(map(act_val, 0, 255, 0, 100)) + "%";
       subText = "SNAR DENS";
       break;
     case PARAM_HIHAT_DENS:
-      mainText = String(map(p.inst_density[2], 0, 255, 0, 100)) + "%";
+      mainText = String(map(act_val, 0, 255, 0, 100)) + "%";
       subText = "HHAT DENS";
       break;
     case PARAM_CHAOS:
-      mainText = String(map(p.chaos_amount, 0, 255, 0, 100)) + "%";
+      mainText = String(map(act_val, 0, 255, 0, 100)) + "%";
       subText = "CHAOS";
       break;
     case PARAM_MAP_X:
-      mainText = String(p.map_x);
+      mainText = String(act_val);
       subText = "MAP X";
       break;
     case PARAM_MAP_Y:
-      mainText = String(p.map_y);
+      mainText = String(act_val);
       subText = "MAP Y";
       break;
     default:
@@ -633,11 +650,33 @@ void setup() {
 void loop() {
   gravity.Process();
 
-  // Apply CV modulation
-  // CV1 modulates Map X, CV2 modulates Chaos
+  static int last_cv1_val = 0;
+  static int last_cv2_val = 0;
+
   cv1_val = gravity.cv1.Read(); // -512 to 512
   cv2_val = gravity.cv2.Read();
 
+  // Trigger redraw if we're not editing and the CV modulating the selected param changes
+  if (!editing_param && selected_slot > 0) {
+    if ((int)cv1_dest == (int)current_param + 1) {
+      if (abs(cv1_val - last_cv1_val) >= 4) {
+        needs_redraw = true;
+        last_cv1_val = cv1_val;
+      }
+    } else {
+      last_cv1_val = cv1_val;
+    }
+
+    if ((int)cv2_dest == (int)current_param + 1) {
+      if (abs(cv2_val - last_cv2_val) >= 4) {
+        needs_redraw = true;
+        last_cv2_val = cv2_val;
+      }
+    } else {
+      last_cv2_val = cv2_val;
+    }
+  }
+
   if (eeprom_needs_save && (millis() - last_param_change > SAVE_DELAY_MS)) {
     SaveState();
     eeprom_needs_save = false;