According to João Carlos Telis, who sent me this 10′ soundtrack from the movie O Cantor E O Milionário, it is the first compilation made in Brazil.
The album is, as far as I could find out, unlisted, so unfortunately I can only guess the exact serial number as it is not clearly legible on the cover.
The performers and their respective compositions are:
01. Enrico Simonetti: Abertura
02. Marlene: Quero sambar
03. Almir Ribeiro: Laura
04. Gasolina: Elvis Presley Brasileiro
05. Almir Ribeiro: Foi a noite
06. Marlene: Jurei
07. Maysa: O que
08. Marlene & Almir Ribeiro: Fogo na marmita
Créditos: João Carlos Telis / Salathiel Coelho