diff --git a/strudel.mjs b/strudel.mjs
index cd1656a0..ae9bf4b7 100644
--- a/strudel.mjs
+++ b/strudel.mjs
@@ -431,16 +431,16 @@ class Pattern {
         return fastQuery.withEventTime(t => t.div(factor))
     }
 
-    fast(factor) {
-        return this._patternify(Pattern.prototype._fast)(factor)
+    fast(...factor) {
+        return this._patternify(Pattern.prototype._fast)(...factor)
     }
 
     _slow(factor) {
         return this._fast(1/factor)
     }
 
-    slow(factor) {
-        return this._patternify(Pattern.prototype._slow)(factor)
+    slow(...factor) {
+        return this._patternify(Pattern.prototype._slow)(...factor)
     }
 
     _early(offset) {
@@ -449,8 +449,8 @@ class Pattern {
         return this.withQueryTime(t => t.add(offset)).withEventTime(t => t.sub(offset))
     }
 
-    early(factor) {
-        return this._patternify(Pattern.prototype._early)(factor)
+    early(...factor) {
+        return this._patternify(Pattern.prototype._early)(...factor)
     }
 
     _late(offset) {
@@ -459,8 +459,8 @@ class Pattern {
     }
 
 
-    late(factor) {
-        return this._patternify(Pattern.prototype._late)(factor)
+    late(...factor) {
+        return this._patternify(Pattern.prototype._late)(...factor)
     }
 
     when(binary_pat, func) {
diff --git a/test/pattern.test.mjs b/test/pattern.test.mjs
index 959727f4..7de9bace 100644
--- a/test/pattern.test.mjs
+++ b/test/pattern.test.mjs
@@ -98,6 +98,12 @@ describe('Pattern', function() {
       // .fast(sequence(1,silence) is a quick hack to cut an event in two..
       assert.deepStrictEqual(pure("a").fast(sequence(1,4)).firstCycle, stack(pure("a").fast(sequence(1,silence)), sequence(silence, ["a","a"])).firstCycle)
     })
+    it('defaults to accepting sequences', function () {
+      assert.deepStrictEqual(
+        sequence(1,2,3).fast(sequence(1.5,2)).firstCycle,
+        sequence(1,2,3).fast(1.5,2).firstCycle
+      )
+    })
   })
   describe('_slow()', function () {
     it('Makes things slower', function () {