LGTM Can you verify that the patch description is correct? The current version doesn't use -> anymore.
https://codereview.appspot.com/565750043/diff/569570043/lily/vowel-transition.cc File lily/vowel-transition.cc (right): https://codereview.appspot.com/565750043/diff/569570043/lily/vowel-transition.cc#newcode37 lily/vowel-transition.cc:37: SCM num_length = me->get_property ("minimum-length"); num suggests a number. minimum_length ? https://codereview.appspot.com/565750043/diff/569570043/lily/vowel-transition.cc#newcode137 lily/vowel-transition.cc:137: w += -d * r->item_drul_[d]->extent (r->item_drul_[d], X_AXIS)[-d]; this still looks strange, but if it's problem, it'll be contained within the vowel-transition code, which is acceptable. https://codereview.appspot.com/565750043/
