Here’s a video with some tips on playing choro.
From the video description:
Essential rhythmic patterns, harmonic suggestions and phrasing advices for anyone interested in starting to play Choro. This tutorial is useful for any instrument, and anyone interested in understanding how the genre works.
Henrique Eisenmann is a pianist and composer, living in New York City. Professor of music at CUNY and faculty at the New England Conservatory.