Oscar Marcelo Alemán, was an Argentine jazz guitarist.
Oscar Marcelo Alemán, talented singer, dancer, entertainer, and guitarist, was born in Chaco Province in Northern Argentina on February 20, 1909. At the age of six, he was dancing and singing with his family's folk ensemble, the Moreria Sextet playing the cavaquinho, a Brazilian ukelele before taking up the guitar. By the age of ten, after his mother had died and father had committed suicide, he found himself an orphan working sporadically as a dancer and musician on the streets of Santos.
Alemán played two guitars - mostly the d-hole Selmer Macafferi (also played by Django Reinhardt), and a National Style 1 tri-cone resonator guitar.
In 1924 Alemán met and began working with Brazilian guitarist Gaston Bueno Lobo