FILE - In this Oct. 16, 2007 file photo, Venezuelan pianist Gabriela Montero performs at Joe's Pub in New York. Montero, perhaps the best-known Venezuelan virtuoso after classical music director Gustavo Dudamel, chastised Dudamel in a public letter on social media for not speaking out against what she considers abuse of power by Venezuela's President Nicolas Maduro. Dudamel led a government-funded youth ensemble on Wednesday, Feb. 12, 2014 in a commemorative concert in downtown Caracas blocks away from where a student was killed hours earlier in anti-government protests. (AP Photo/Jim Cooper, File)