In one school in which I was principal, I played classical music over the intercom to start every day. It created a happy atmosphere and gave every adult and child something to share. It’s easy to build good connections using pieces from Verdi’s operas, especially when a student says “I know that one!”
Integrating music into teaching doesn’t have to be heavy duty, like designing a major curriculum unit. Show your students this video of The Three Tenors having fun with a Verdi piece everyone recognizes.