Thank you musikbear and vlbonnie

I literally created the account just to answer the forum question.

I thought the forums were dead as no one answered the dude for so long. I guess not.

Thank you for letting me know where the cc3 button thing is. That'll make life so much easier.
6 Years and I can't find a correct answer online. Hopefully this answer helps someone.

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You have to move that square one octave higher. Then the lowest 23 keys will be able to choose which line of text you want to sing.

I still can't figure out what CC3 is.