Function formatChordSymbol

formatChordSymbol(chord: ChordData, opts?: { flats?: boolean }): string
Format a Chord as a lead-sheet chord symbol.

The inverse of parseChordSymbol: each quality maps to one canonical suffix spelling, and a slash bass is appended only when it differs from the root. When the chord carries rootSpelling/bassSpelling hints (as chords from parseChordSymbol do) and no explicit flats preference is given, the hints are reused so flat symbols round-trip unchanged.
Parameters
- chord: ChordData
  The chord to format.
- Optionalopts: { flats?: boolean }
  Formatting options.
  - Optionalflats?: boolean
    
    Prefer flat spellings over sharps for altered roots/basses; passing either true or false overrides any spelling hints.
Returns string
The chord symbol text.
Example
```
import { makeChord, formatChordSymbol } from '@libraz/libcantus';
formatChordSymbol(makeChord(0, 'min7')); // 'Cm7'
```
- Defined in theory/symbol/index.ts:231