and i'll shout it to the blue summer sky ♪ >> reporter: the teacher that makes it all happen is gregg breinbergme is thanks to his ability to help the kids really feel the songs they're singing. ♪ time makes you bolder, even children get older ♪ >> i encourage them to find a musical connection to every song we do. we'll discuss lyrics. we're doing music that is emotionally sophisticated, and what's great is that these kids have kind of an emotional experience behind them that, again, when they bring it to the table, they're putting something out there that's behind the notes, behind the rhythm. you can't miss it. you can't miss it. you see it, you can't miss it. ♪ >> reporter: the kids call him mister b. he inspires them to explore not only lyrics, harmony and movement, but also the benefits of hard work. >> i try to be there for these kids. so i try to assume that all these kids need that extra, that extra pat on the back, that extra bit of motivation, that extra bit of inspiration that says "hey, you're doing something really special you know, and i'm really proud of you," and that's my most