diff --git a/iipyper/iipyper/__init__.py b/iipyper/iipyper/__init__.py
index fdab666..0f433aa 100644
--- a/iipyper/iipyper/__init__.py
+++ b/iipyper/iipyper/__init__.py
@@ -1,4 +1,6 @@
 import asyncio
+import functools
+import threading
 
 import fire
 
@@ -6,19 +8,33 @@
 from .osc import *
 
 _loop_fns = []
-# decorator to make a function loop
-def repeat(time):
+
+def repeat(_time):
+    """
+    decorator to repeat function every 'time' seconds
+    """
     # close the decorator over time argument
     def decorator(f):
         # define the coroutine
-        async def g():
+        @functools.wraps(f)
+        async def g(*args, **kwargs):
             # call `f` every `time` seconds
             while True:
-                f()
-                await asyncio.sleep(time)
+                t1 = time.time()
+                f(*args, **kwargs)
+                t2 = time.time()
+                delta_t = t2 - t1
+                sleep_time = _time - delta_t
+
+                if (sleep_time < 0):
+                    print("Warning: repeat@ sleep time < 0")
+                    await asyncio.sleep(0)
+                else:
+                    await asyncio.sleep(sleep_time)
+
         # track the coroutine in a global list
         _loop_fns.append(g)
-
+        return f
     return decorator
 
 
diff --git a/mrp/mrp/mrp.py b/mrp/mrp/mrp.py
index 3157ee7..664736b 100644
--- a/mrp/mrp/mrp.py
+++ b/mrp/mrp/mrp.py
@@ -278,6 +278,30 @@ def quality_update(self, note, quality, value, relative=False, channel=None):
             print('quality_update(): "quality" is not a string:', quality)
             return None
 
+    def quality_update_all(self, quality, value, relative=False, channel=None):
+        """
+        Update quality of all active notes to a new value.
+
+        Example
+            quality_update_all('brightness', 0.5)
+
+        Args
+            quality (string): name of quality to update, must be same as key in osc_paths
+            value (float): value of quality
+            relative (bool): replace the value or add it to the current value
+            channel (int): which MIDI channel to send on
+        """
+        if isinstance(quality, str):
+            active_notes = self.note_on_numbers()
+            changed_notes = []
+            for note in active_notes:
+                changed_note = self.quality_update(self, note, quality, value, relative, channel)
+                changed_notes.append(changed_note)
+            return changed_notes
+        else:
+            print('quality_update(): "quality" is not a string:', quality)
+            return None
+
     def qualities_update(self, note, qualities, relative=False, channel=None):
         """
         Update a note's qualities to a new set of values.
@@ -302,7 +326,7 @@ def qualities_update(self, note, qualities, relative=False, channel=None):
                     channel = self.settings['channel']
                 tmp = self.notes[self.note_index(note)]
                 for q, v in qualities.items():
-                    if isinstance(value, list) or isinstance(value, np.ndarray): # e.g. /harmonics/raw
+                    if isinstance(v, list) or isinstance(v, np.ndarray): # e.g. /harmonics/raw
                         if relative is True:
                             print('quality_update(): relative updating of lists not supported')
                         else:
@@ -325,7 +349,35 @@ def qualities_update(self, note, qualities, relative=False, channel=None):
         else:
             print('quality_update(): "qualities" is not an object:', note, qualities)
             return None
+    
+    def qualities_update_all(self, qualities, relative=False, channel=None):
+        """
+        Update the qualities for all active notes to a new set of values.
 
+        Example
+            qualities_update_all({
+                'brightness': 0.5,
+                'intensity': 0.6,
+                'harmonics_raw': [0.2, 0.3, 0.4]
+            })
+        
+        Args
+            qualities (dict): dict of qualities in key (string):value (float) pairs to update, 
+                              must be same as key in osc_paths
+            relative (bool): replace the value or add it to the current value
+            channel (int): which MIDI channel to send on
+        """
+        if isinstance(qualities, dict):
+            active_notes = self.note_on_numbers()
+            changed_notes = []
+            for note in active_notes:
+                changed_note = self.qualities_update(self, qualities, relative, channel)
+                changed_notes.append(changed_note)
+            return changed_notes
+        else:
+            print('quality_update(): "qualities" is not an object:', note, qualities)
+            return None
+    
     """
     /mrp/pedal
     """
@@ -422,7 +474,7 @@ def note_on_numbers(self):
         return numbers of notes that are on
         """
         on_numbers = []
-        for note in enumerate(self.notes):
+        for note in self.notes:
             if note['status'] == NOTE_ON:
                 on_numbers.append(note['midi']['number'])
         return on_numbers