[1] Two years later he debuted with the São Paulo State Symphony Orchestra (OSESP) under the baton of conductor Eleazar de Carvalho, receiving the Revelation Pianist Award from the APCA (São Paulo State Association of Art Critics).
Bratke has performed alongside conductors such as Alexander Lazarev, Isaac Karabtchevsky, Álvaro Cassuto, Eleazar de Carvalho, John Neschling, Roberto Minczuk, João Carlos Martins, among others.
Also, he participated in crossover projects with Julian Joseph, Naná Vasconcelos, Thiago Soares, Marco Gambino, Milton Nascimento, Dori Caymmi, Fernanda Takai and Sandy.
In 2008, Marcelo Bratke founded the “Camerata Brasil”, an orchestra of young musicians from underprivileged areas of Brazilian society.
[10] In partnership with the visual artist Mariannita Luzzati, he created the project “Cinemúsica”, conceived to be presented in Brazilian prisons and later taken to concert halls in Europe, Brazil and the United States.