(root (car in-pitches))
(pitches (map (lambda (x) (ly:pitch-diff x root)) (cdr in-pitches)))
(exceptions (ly:context-property context 'chordNameExceptions))
- (exception (assoc-get-default pitches exceptions #f))
+ (exception (assoc-get pitches exceptions))
(prefixes '())
(suffixes '())
(add-steps '())