Formed in São Paulo, Brazil, by Antonio Panda Gianfratti (contemporary percussion), Rodrigo Montoya (shamisen, biwa and guitar), Thomas Rohrer (rabeca, saxophones and electronics), Luiz Gubeissi (double bass) and Marcio Mattos (cello, double bass and electronics), the A B A E T E T U B A collective is a group of musicians dedicated to the art of Free Improvisation. Projects its music through a variety of musical instruments in original approaches to playing them.