diff --git a/light9/effect/sequencer/eval_faders.py b/light9/effect/sequencer/eval_faders.py
--- a/light9/effect/sequencer/eval_faders.py
+++ b/light9/effect/sequencer/eval_faders.py
@@ -18,7 +18,7 @@ log = logging.getLogger('seq.fader')
 
 class FaderEval:
     """peer to Sequencer, but this one takes the current :Fader settings -> sendToCollector
-    
+
     The current faders become Notes in here, for more code reuse.
     """
     def __init__(self,
@@ -53,7 +53,7 @@ class FaderEval:
     def compileGraph(self) -> None:
         """rebuild our data from the graph"""
         self.notes = []
-        for fader in self.graph.subjects(RDF.type, L9['Fader']):          
+        for fader in self.graph.subjects(RDF.type, L9['Fader']):
             def compileFader() -> Note:
                 return self.compileFader(cast(URIRef, fader))
 
@@ -64,9 +64,9 @@ class FaderEval:
 
     @metrics('compile_fader').time()
     def compileFader(self, fader: URIRef) -> Note:
-        return Note(self.graph, cast(NoteUri, fader), 
+        return Note(self.graph, cast(NoteUri, fader),
                     timed=False)
-    
+
     def computeOutput(self) -> DeviceSettings:
         notesSettings = []
         now = UnixTime(time.time())
@@ -78,7 +78,7 @@ class FaderEval:
 
             ee = effecteval.EffectEval(self.graph, note.effectClass, self.simpleOutputs)
             deviceSettings, report = ee.outputFromEffect(
-                effectSettings, 
+                effectSettings,
                 songTime=now, # probably wrong
                 noteTime=now, # wrong
                 )