[Request] Add Musixmatch translation code

[ElliotCHEN37]

📝 Provide a description of the new feature

Can you add a Musixmatch language code? It's 'z1', which means traditional Chinese. Some lyrics translations are only available in z1, not in zh.

➕ Additional Information

No response

[udogri]

can I attempt to fix this issue?

[ElliotCHEN37]

of course you can!