The new music teacher must try to teach A.J. and the rest of his class to play well enough during their recital to impress crabby Dr. Carbles.

Twelve-year-old María Luisa O'Neill-Morales (who really prefers to be called Malú) reluctantly moves with her Mexican-American mother to Chicago and starts seventh grade with a bang--violating the dress code with her punk rock aesthetic and spurning the middle school's most popular girl in favor of starting a band with a group of like-minded weirdos.

"Fourth period is hands down the best time of day in Connor U. Eubanks Middle School, because that's when Mr. Lewis teaches Jazz Lab. So his students are devastated when their beloved teacher quits abruptly. Once they make a connection between budget cuts and Mr. Lewis's disappearance, they hatch a plan: stop the cuts, save their class. Soon, they become an unlikely band of crusaders, and their quest quickly snowballs into something much bigger--a...

"Cline Alden's grandmother says that music is in the family's blood, but Cline's mother is dead-set against her daughter's dreams of becoming a country music singer; Cline is determined to find the money to attend a Young Singer-Songwriter Workshop in Lexington (not too far from her Paris, Kentucky home), so now she has a lot on her mind--she is hiding things from her mother, she is losing her beloved grandmother to Alzheimer's, and she has begun...

Clayton feels most alive when he's with his grandfather, Cool Papa Byrd, and the band of Bluesmen -- he can't wait to join them, just as soon as he has a blues song of his own. But then the unthinkable happens. Cool Papa Byrd dies, and Clayton's mother forbids Clayton from playing the blues. And Clayton knows that's no way to live. Armed with his grandfather's brown porkpie hat and his harmonica, he runs away from home in search of the Bluesmen, hoping...

Rosa organizes her friends into the Oak Street Band in order to earn money her family needs because of her Grandma's illness ... Community, family and personal triumphs converge, making unforgettable music for everyone. And the money jar--in which the family saved their change to buy the big red chair and Rosa's accordion--is empty too. Leora, Mae, and Jenny often make music for Grandma. She says their playing makes her feel like a girl again, dancing...

When he takes a ride in a UFO to meet Janet, the head alien, Rappy must decide whether to live with her on Mars or return home.

Remy, a master at getting rid of boyfriends before any emotional attachments form, finds herself strangely unwilling to free herself from Dexter, a messy, disorganized, impulsive musician who she suspects she has come to love.

When Kitten mistakes the full moon for a bowl of milk, she ends up tired, wet, and hungry trying to reach it.

Mr. Putter and his neighbor Mrs. Teaberry both like music.He likes the broken hearts and big heroes of opera. She likes the broken hearts and bighaired stars of country music.