Elsie Wyatt is a born French horn player, just like her father and her grandfather before her. In order to qualify for the prestigious summer music camp of her dreams, she must expand her musical horizons and join--gasp!--the marching band. There are no French horns in marching band, but there are some very cute boys. Elsie is not so sure she'll survive, but the new friends she's making and the actual fun she's having force her to question her dad's expectations and her own musical priorities.