Function tryParseKeyName

tryParseKeyName(text: string, opts?: NoteNameOptions): ParseResult<KeyName>
Parse a key name, reporting failure instead of throwing it.

The same reading as parseKeyName — that function is this one with its error thrown — for the callers where a name that does not parse yet is the normal state of the input rather than a fault.
Parameters
- text: string
  The key name.
- Optionalopts: NoteNameOptions
  system reads the name in that notation system instead of detecting it.
Returns ParseResult<KeyName>
The key, or the error explaining why the text is not one.
Example
```
import { tryParseKeyName } from '@libraz/libcantus';
const result = tryParseKeyName('gis moll');
result.ok ? result.value.mode : result.error.message; // 'minor'
```
- Defined in src/core/pitch/index.ts:333