The frozen 37-scale catalog. Each entry carries a full descriptor (mask + name
category + two-tier flag). Masks are derived from pitch-class sets via
_scaleMask so they equal the blessed scale_value numbers exactly.
Mirrors the Scales enum in encode.py.
The frozen 37-scale catalog. Each entry carries a full descriptor (mask + name
_scaleMaskso they equal the blessedscale_valuenumbers exactly. Mirrors theScalesenum in encode.py.