Gemma Galeano Ballestar was born in Segorbe (Spain) in 1996. She finished her Saxophone Professional Degree at the Conservatory "Alto Palancia" in Segorbe (Spain) in 2015. In the same year she started Bachelor at the “Conservatorio Superior de Música de Castilla y León” in Salamanca (Spain) under the teaching of Prof. Ángel Soria.
During that period, Gemma has been part of the 2.13 SAX Saxophone Ensemble performing in several cities throughout Spain and also at the 18th World Saxophone Congress in Zagreb (Croatia).

Gemma Galeano studied her last year of Bachelor at the Zürcher Hochschule der Künste (ZHdK) thanks to the Erasmus Program. From 2018 to 2022 she has been part of the Zurich Saxophone Collective, conducted by Prof. Lars Mlekusch. Currently, she is one of the members of the Duo Via (together with Ferran Gorrea) and the free improvisation quartet Slide EnsembleSince September 2023 she is a member of Billiger Bauer, one of the oldest free improvisation Band in Switzerland.

In September 2019, Gemma has been part of the Saxophone Quartet that represented Zürich and its University of Arts in the Swiss Embassy in Seoul (South Korea). Gemma Galeano combines since 10 years her activity as a Performer with teaching. She has worked in several music schools such as "Banda de Música de Zamora", Cabrerizos Music School (both in Spain) and in the Music School of Brugg (Aargau, Switzerland).

From 2019 to 2021 she studied a Master of Arts in Music Performance and from 2021 to 2023 a Master in Music Pedagogy, both at the Zürcher Hochschule der Künste.

From August 2022 she is the official Saxophone teacher at the Jugendmusik Sihltal (Langnau am Albis). She is also teaching at the Musikschule Zumikon as a substitute saxophone teacher until July 2024. She organises and teaches music courses in catalan for kids between 3 and 6 years old. In addition, Gemma, together with Ferran Gorrea, also organise the regular series of open stages at Mehrspur Musikklub called SPURFREI. 

Thanks to the following scholarships, she could finance her studies in Switzerland: Elsy Meyer, Fondation ZHdK, Freundeskreis, Lyra, Zackowsky and Melinda Esterházy de Galantha.