1\version "2.19.21"
2
3\header {
4  texidoc = "When two (or more) accidentals modify the same pitch,
5they are printed adjacent to one another unless they represent the same
6alteration, in which case they are printed in exactly the same position
7as one another. In either case, collisions with accidentals of different
8pitches are correctly computed."
9}
10
11\relative
12{<< <dis'' aeses as a! a! ais aisis a,! aeh cis'> \\ <ais aih> >> }
13
14\paper {ragged-right = ##t}
15