Thanks for reaching out about this in the Community!
Apologies for the delayed reply, we've just come across this thread.
Since the Lyrics feature is still in its test phase, not all accounts will have access to it.
It's worth trying to log in and out twice and check whether that enables the option. This works for some users.
If that's not the case and you want to get Lyrics right away, you can try creating a new test account and see if Lyrics is enabled on that one. If so, have a look at this guide and consider moving you Music collection over to the new account.
Hope this info if useful. Don't hesitate to reach out again if you have more questions.
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