Normalizes a song title by converting it to lowercase and stripping non-alphanumeric characters and optionally parenthetical metadata.
The original song title to be processed.
If true, removes content in () or [] (e.g., " (feat. Artist)").
()
[]
The processed and normalized string.
convertToAlnum
Normalizes a song title by converting it to lowercase and stripping non-alphanumeric characters and optionally parenthetical metadata.