Slight Improvements to Various Things

- if a chord is a quality not in the quality_dict, ChordsLists is okay
- better detection of which Experiment to run
- easier switching between crash-proof and crashing Experiments
Improvements for Chord Labels

- No longer label NR transformations (to speed up development)
- No longer try to find roots of chords (to speed up development)
- Substitute bb and ## and o and x in LilyPond output