Discoteca Básica Nacional

A Portuguese collection created in 1978, the National Recording Library (Discoteca Básica Nacional) became, in 1987, the recording label PortugalSom. During its period of existence the records were released with arrangements between SEC (Secretaria de Estado da Cultura) and labels such as A Voz Do Dono, Da Nova, Diapasão or Imavox.