Mats Bengtsson <address@hidden> writes:
If you want to remove the stems completely but not the engraver, it should
work to set
\override Staff.Stem #'print-function = ##f
Wait a second, the above solution is for version 2.6 and you are using
version 2.7.14. Then I hope that the following works instead:
\override Staff.Stem #'stencil = ##f
Godd idea, but it doesn't work in practice. The stems are gone, but
slurs still avoid them as if they were there, probably due to the same
code in slur-scoring.cc.