With public interest in classical music dwindling, the Boston Modern Orchestra Project aims to step outside the Beethoven box. Founder and conductor Gil Rose chatted with us about the goals of the BMOP, the challenges the organization faces within the Boston music scene, and the recent release of two new self-published recordings: Milton Babbitt’s All Set and George Antheil’s Ballet Mecanique. See the BMOC in action on March 28 at the Boston Connection concert.