“A beautiful account of a young girl’s bravery and her important contribution toward gender equality in the creative arts.”  — Kirkus Reviews (starred review)

“The heroine’s tenacity in the face of naysayers will inspire all dreamers, and the illustrator’s smile-inducing cameo on the last page emphasizes the universality of Millo’s story…For those looking for more nonfiction titles about female musical powerhouses.” — School Library Journal (starred review)

“The text and illustrations work together beautifully here, creating a story that will imbue readers with inspiration and a yearning to make music of their own.”  — Booklist

“A valuable addition to the growing library of stories about strong Latina women.”  — Publishers Weekly

“With its emphasis on artistry and visual metaphor, this title bears a strong kinship with Yuyi Morales’ Viva Frida, but it also brings an accessibility that young viewers (and teachers) will appreciate.”  — Bulletin of the Center for Children’s Books

“Engle’s poetic text takes its cues from Zaldarriaga’s chosen instrument, its rhythm at times steadily assured and at others loose and improvisational…[E]very spread is full of motion, with some of the illustrations requiring a ninety-degree turn, as if the book itself has got to dance.” — Horn Book Magazine

“Engle’s poetic narrative combined with Lopez’s warmly ethereal folk-art illustrations to evoke a nighttime tropical dreamscape.”  — New York Times Book Review