On this youtube-video Cardoso himself plays a (well known) piece:
The video is labeled as Choro, but I think he plays another piece.
Does anyone know which one?
No, that’s “Sons Da Carrilhoes” or “Sound Of Bells” by Julio Guimaraes (Pernambuco). Back in the 1950’s someone miss-labeled it as a Choro by Villa Lobos. Most people play the rhythm incorrectly, using two 1/16th notes. It should be 1/8 not and a 1/16th. Go to YouTube and type in “Sound Of Bells.” Tons of people playing it, mostly with the wrong rhythm. I have a correct arrangement by the late Vince Macaluso.