Seventh-grader Davis Beadle joins the Benton Bluff Junior High band, stubbornly determined to play the trumpet--but that section is full, so the band director instructs him to spend time with several of the other instruments, hoping Davis will find his true place in the band.

The Benton Bluff Junior High band is one of a number of bands that will compete to perform for a chance to play for the governor, and two of the band members are fighting over who gets to be the soloist--Baylor Meece (clarinet) is not one of them, so can she come up with a plan to bring the band back into harmony?

Lost in the Black Forest, Otto meets three mysterious sisters and finds himself entwined in a prophecy, a promise, and a harmonica--and decades later three children, Friedrich in Germany, Mike in Pennsylvania, and Ivy in California find themselves caught up in the same thread of destiny in the darkest days of the twentieth century, struggling to keep their families intact, and tied together by the music of the same harmonica.

Sixth-grader Emmy tries to find her place in a new school and to figure out how she can create her own kind of music using a computer.

Lydia starts a band with Julie, Roland, and Jane in an effort to reinvent herself as a rock star.

The whole Benton Bluff Junior High band is at band camp, and when things start to go missing everybody blames Zac, the class clown--but when Zac's saxophone disappears he suspects that it is someone in another group trying to sabotage Benton Bluff, and sets out to uncover the culprit.

"Nikki and her bandmates are looking forward to an AWESOME summer on tour as the opening act for the world famous Bad Boyz! Nikki is a little worried when her frenemy, MacKenzie Hollister, weasels her way into a social media intern position with the tour. But she has a total MELTDOWN when she learns that MacKenzie is her new roommate! Will Nikki survive her dream tour as it quickly goes from AWESOME to AWFUL?!"--