lgtm http://codereview.appspot.com/6494071/diff/1/lily/time-signature.cc File lily/time-signature.cc (left): http://codereview.appspot.com/6494071/diff/1/lily/time-signature.cc#oldcode26 lily/time-signature.cc:26: #include "staff-symbol.hh" no longer need "staff-symbol.hh"