Braga Satos composed his First Symphony in 1946 at the age of 22. As far as I know he had never been out of Portugal. It is unlikely that he had ever heard any RVW in concert inside Portugal. Had he studied an RVW score ??? I have no idea.
He could have heard it on the radio, perhaps? The influence of VW 4 is so strong it would be surprising if it were coincidence.
As far as I know (not that well, but I tried to find out, one day) he could hear British music on the radio. In that case, he might even have heard some Moeran - as the influences seem to be even stronger, there (e.g. the opening bars of Moeran's Sinfonietta compared to Braga Santos' Divertimento).
