In 1989 he moved to Rio de Janeiro where he was invited to take part in several music contests such as Baura and Avaré (São Paulo), which Lenine also attended, Turmalina (Minas Gerais), Cordeiro (Rio de Janeiro) and Carajás (Pará), among others.
His experience as a studio musician led him to record his own debut CD titled Viver Você in 1994, alongside composer César Nascimento.
In the spring of 1998 he decided to leave Brazil in an effort to enrich his musical experience and chose Madrid, Spain as his new home.
In 2004 he recorded his second solo CD “Fascínio” and in doing so consolidated his identity as a composer. Working together with artists such as Madrid-born poet Daniel Lesmes, he achieved a CD which features a colorful fusion between Brazilian, Latin American and Spanish rhythms.
Over the last few years he has also participated in such recording endeavors as composer and singer Rosalía Royo's "Paradoja", composer Helios Ruiz's CD "Se Venden Alas?", which Glaston both produced and arranged, as well as Colombian artist Claudia Gómez's CD "Vivir Cantando", on which she sings Gladston's "Luzes".
In 2005 he recorded his third CD, "Glaston Galliza The Album", produced exclusively for the Japanese market as a joint endeavor with producer Lava.
In 2007 Gladston releases two more albums: “Idas e Idas”, his four solo cd and “Madrid”, another project made for Japan.
Gladston performs regularly with his band and prepares his new releasing for 2010.