Function toAbcNotation

toAbcNotation(input: NoteInput): string
Converts scientific pitch notation input to abc notation.
Parameters
- input: NoteInput
  The note input in scientific pitch notation
Returns string
The corresponding abc notation output
Example
```
// returns CEG
toAbcNotation(['C3, 'G3', 'B3']);
```
Example
```
// returns CEG
toAbcNotation('C3 G3 B3');
```
- Defined in packages/core/src/utils.ts:91