This choir is an outstanding musical ensemble, one that has traveled around the world, performing in places like Tokyo and Jordan. This past Fourth of July the group performed at the Kennedy Center in Washington D.C.
But it is back here in Boston where they are still making the biggest impact, teaching themselves and others that who are they are is just as important as how well they sing.
"My favorite part of being in the Boston Children's Chorus would be coming every day and realizing that I'm making a difference in this world. I mean, we come here and we're rehearsing, but it's not just the rehearsal aspect," said Miles.
"It's the aspect of being able to see different people come from different areas and see us coming as one to create a different change in a place that might not have what we have here."
ABC News' Catherine Cole and Sarah Amos contributed to this report.