Ensure nodes play properly in circular mode. (#4570)

* Ensure nodes play properly in circular mode.

* fixed lint warnings

Author: falgun143

js/widgets/temperament.js

@@ -2097,9 +2097,13 @@ function TemperamentWidget() {
         if ((this._playing && currentTime - this.lastClickTime > Singer.defaultBPMFactor * 1000 * duration) || (this.inbetween)) {
             that.playbackForward = true;
             this.inbetween = false;
-            for (let i = 0; i <= this.pitchNumber; i++) {
-                docById("pitchNumber_" + i).style.background = platformColor.selectorBackground;
+            if (this.circleIsVisible) {
+                for (let i = 0; i <= this.pitchNumber; i++) {
+                    const pitchElement = docById("pitchNumber_" + i);
+                    pitchElement.style.background = platformColor.selectorBackground;
+                }
             }
+
             __playLoop(0);
         }
         this.lastClickTime = currentTime;