Comment #3 on issue 3143 by [email protected]: tremolo sign collides with alteration
http://code.google.com/p/lilypond/issues/detail?id=3143
the snippet above does not compile on 2.14.2 here's the error: Preprocessing graphical objects... Finding the ideal number of pages... Fitting music on 1 page...Drawing systems...drul-array.hh: T& Drul_array<T>::at(Direction) [with T = double]: Assertion `d == 1 || d == -1' failed.
