I wish I knew! My technique is not up to it these days.
My location recording career seems to have narrowed in on utterly amazing Brazilian musicians who come through and play concerts in much smaller venues than they should (Ian Coury, Paula Santoro, Alessandro Penezzi, Cesar Garambini, Choro das Tres, Rogério Souza and Edinho Gerber, and a host of wonderful local Colorado artists). Every single one of them has not only been incredible soulful and virtuosic, but also the most wonderful people on earth. Boulder, Colorado has a great Brazilian scene.
At some point, the guy who produces these concerts and I will put together a compilation.