diff --git a/basic_pitch/constants.py b/basic_pitch/constants.py
index 4299bbe..fb96c99 100644
--- a/basic_pitch/constants.py
+++ b/basic_pitch/constants.py
@@ -62,6 +62,7 @@ def _freq_bins(bins_per_semitone: int, base_frequency: float, n_semitones: int)
 FREQ_BINS_NOTES = _freq_bins(NOTES_BINS_PER_SEMITONE, ANNOTATIONS_BASE_FREQUENCY, ANNOTATIONS_N_SEMITONES)
 FREQ_BINS_CONTOURS = _freq_bins(CONTOURS_BINS_PER_SEMITONE, ANNOTATIONS_BASE_FREQUENCY, ANNOTATIONS_N_SEMITONES)
 
+
 class Split(Enum):
     train = "train"
     validation = "validation"