This is a really interesting interview that Villa-Lobos gave at the Empire State Music Festival in Harriman State Park (Bear Mountain) in New York, on July 12, 1959. This was the composer's last concert before his death. Though he couldn't have been in the best of health, he sounds his usual self. His wife Mindinha chimes in at the end.
Unfortunately my Portuguese is less than basic, but this Google translation of the YouTube poster's summary give the gist of what Villa said:
Villa-Lobos comments on the issues of the time, welcomes the Brazilian people, declares his love for the homeland - Rio de Janeiro - and talks to the journalist while the orchestra rehearses the presentation of more. In the audio that is now part of the MEC FM radio collection, Villa-Lobos demystifies the creation process. "This business of coming inspiration does not exist in me. I was born inspired already. Either I do a good thing, or I do crap. But this business of me looking for inspiration, letting hair grow to have inspiration, drink, it does not exist in me. I write when I need to.