In what year was the album “50 Anos em 7 Notas: Meio Seculo de Frevo de Rua Vol 2” released by Nelson Ferreira?

In what year was the album “50 Anos em 7 Notas: Meio Seculo de Frevo de Rua Vol 2” released by Nelson Ferreira?: The album “50 Anos em 7 Notas: Meio Seculo de Frevo de Rua Vol 2” was released in 1973 by Nelson Ferreira, featuring 12 tracks.
What is the most successful song from the album “50 Anos em 7 Notas: Meio Seculo de Frevo de Rua Vol 2” by Nelson Ferreira?: “” is the biggest hit from the album “50 Anos em 7 Notas: Meio Seculo de Frevo de Rua Vol 2” by Nelson Ferreira.

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