Last Friday I had the pleasure of stepping into one of Boston’s prettiest and unadvertised courtyards. The Boston Public Library was the day’s venue and Aires de Argentina was the band performing. I-Yun Chung announced her band, and off they went. This multicultural five piece band of Berklee pros produced the most low key yet most interesting shows I have been to yet. I-Yun has a great affinity towards Argentinian music and has therefore produced a band to play just that.