Here's is a great compilation from the early years of Aníbal Troilo y su Orquesta Típica. The album includes all the tangos recorded with Francisco Fiorentino in 1941, but not the valses "Bajo un cielo de estrellas" and "Tu diagnóstico" and the milongas "Mano brava", "Con toda la voz que tengo" and "Del tiampo guapo". All the classic instrumentals from 1941 like "Cachirulo" are fortunately included as well. The songs follow each other in chronological order.
The quality of the digitalized recordings is excellent and the recordings have a very natural sound with some background noise remaining but none of the high end frequencies are ruined by filtering too much. This is the highest quality compilation I was able to find on Spotify for these recordings from 1941 and I highly recommend it.
The album is available on Spotify - iTunes Store - Amazon
At "Tanda of the Week" you can listen to tandas with Anibal Troilo.