These three concerts in this collaborative group’s In Visible Roads festival all look at the piano in one way or another. On Friday there’s a glimpse at composers who are either synesthetic or take an avowedly coloristic approach to composing, including Messiaen, Scriabin, Andy Akiho and George Crumb; on Saturday, a marathon concert of three sets, with more than a half-dozen pianists and music by Missy Mazzoli, Steven Stucky, Jesse Jones and more; and on Sunday, dance music, from everyone from Bach to Oliver Knussen and Caroline Shaw.