Omar was born in 1976. The composer started his studies at the age of ten. In fact, Omar decided to become a musician after watching a score of Mozart's Symphony no. 41, which his father had at home. He became fascinated by the way music could be written and decided to learn how to understand that, then, strange code. One year later he was given his very first instrument, the french horn. Two years more, the piano and finally the flute.

In 1997, he started his undergraduate course at the School of Music in Rio de Janeiro. There he met Brazilian masters of diverse areas. Despite of majoring in flute performance, composition was the main point for the young man. In Rio he had contact with the music of Camargo Guarnieri, Guerra Peixe and Villa-Lobos among other Brazilian composers. He studied with Ernani Aguiar and Jorge Nunes who were strong influences at the time.