The Moody Blues are no more, but keyboardist Alan Hewitt isn’t slowing down. The band’s longtime keyboardist and musical director has turned back to his own band, One Nation. He brings the progressive rock/jazz fusion outfit to the Homestead June 17, opening the second season of the revived Music On The Mountain. “I’m excited to be on the road with my band, and to be playing in such a beautiful place,” says Hewitt.