diff --git a/rms_analysis.py b/rms_analysis.py
index ad27011..6021363 100644
--- a/rms_analysis.py
+++ b/rms_analysis.py
@@ -254,7 +254,7 @@ def note_stats( r, decay_pct=50.0, extraDurSearchMs=500 ):
         
         
                
-def locate_peak_indexes( xV, xV_srate, eventMsL, audioFn ):
+def locate_peak_indexes( xV, xV_srate, eventMsL, audioFn="" ):
 
     pkIdxL = []
     for i, (begMs, endMs) in enumerate(eventMsL):
@@ -601,6 +601,9 @@ def write_audacity_label_files( inDir, analysisArgsD, reverseFl=True ):
 
             takeDir = os.path.join(pitchDir,takeFolder)
 
+            if not os.path.isfile(os.path.join(takeDir,"seq.json")):
+                continue
+
             r = rms_analysis_main( takeDir, midi_pitch, **analysisArgsD )
 
             labelFn = os.path.join(takeDir,"audacity.txt")