diff --git a/packages/core/pattern.mjs b/packages/core/pattern.mjs
index ddea674ac..f5b0c676e 100644
--- a/packages/core/pattern.mjs
+++ b/packages/core/pattern.mjs
@@ -62,12 +62,7 @@ export class Pattern {
     this.__steps = steps === undefined ? undefined : Fraction(steps);
   }
 
-  _processParts() {
-    return this.withHap((hap) => hap.withContext((c) => ({ ...c, processParts: true })));
-  }
-
   setSteps(steps) {
-    // TODO should this be pure?
     this._steps = steps;
     return this;
   }