I was finally able to get a video of Luke humming his A-B-C’s. He usually turns mute as soon as he sees the camera or video camera. Luckily I was able to get about 30 seconds of him humming before he remembered that I was taping him.
And that loud hum that comes in at the end of Luke’s song, that would be Kenny. Because you know that if Luke is getting attention, Kenny has to get involved (and Luke does the exact same thing when Kenny is in the spotlight).