Sofia nodded, sliding off the couch to make her way to Greg's right side, Reina climbing up on his left; he shifted out of their way without even looking at them, focused on flipping pages of music. It was an old routine, by now, even if he wasn't anywhere near tired of it- no matter how much grumbling he tried to do, mostly for Jack's benefit.
Once the girls were all settled, he signed over at Reina, "What do you want me to play?" She signed back, and he nodded a little. "Are you playing, too?" She nodded, setting her hands on the keys. "Fine, you start," Another nod, and she waited a second before starting on the song, Greg picking up after a measure or two. The harmony was easy, practiced, and other than a few mistakes on Reina's part, it was a beautiful, slow song. Sofia watched the two of them play, studying their hands, as if she was learning to do it, too.
Greg got wrapped up in the music, Jack once again forgotten. He'd make it up to the man, later.