Lorenzo is a professional composer, sound designer, and audio engineer based in Italy. In 2022, Lorenzo graduated from the Vecchi Tonelli Conservatory in Modena. Lorenzo plays the transverse flute and keyboards. Lorenzo composed the theme music, "Bella's Song," to convey the emotional journey that Bella experiences during her adventures. "Bella's Song" can be heard at the beginning and the end of the audiobook. Lorenzo composed his endearing song with children in mind so that they can learn to play the simple melody on instruments that they may already have at home, like a toy piano, ukulele, and kalimba.

Ilenia was born in China and currently resides in northern Italy. She arranged and performed "Mo Li Hua," which means "jasmine flower," an ancient folk song from the Qing dynasty. Ilenia is a sought-after guzheng instructor and performs both as a soloist and in ensembles throughout Italy.

Lucas is a composer, arranger, producer, and guitar player from Brazil. He is also a music scholar and holds a Ph.D. in music composition for film. Lucas is currently a musicology postdoc fellow at the University of São Paulo.

Lucas composed and performed "Bella's Frevo" for the Brazilian theme music. Frevo is a carnival dance from Recife, Brazil, with roots in capoeira. Traditional frevo music uses vigorously played brass and percussion instruments. Lucas selected the "frevo canção" style for the audiobook because it is a little slower and more gentle sounding than traditional frevo. Even though "Bella's Frevo" is an instrumental track, the genre usually has lyrics and a singer.

In keeping with the theme of the audiobook, Lucas used the mandolin and guitar as the core instruments to bring the energy down while maintaining its Brazilian flavor. The brass and percussion instruments are still present, however, with secondary roles.

Pablo Domínguez, affectionately known as "Pablo de Cádiz," was born into a musical family. As a child, Pablo's father, Chano Domínguez, a 4-time Grammy nominee, introduced him to the music of many flamenco artists, including Tomatito, Luís de la Pica, Piraña, and Blas Córdoba. Pablo started his career in percussion and transitioned to the flamenco guitar in honor of his roots. Pablo also performs Latin jazz while exploring other music genres and trends.