diff -Naur rumor-1.0.5.orig/src/notator.cc rumor-1.0.5.new/src/notator.cc --- rumor-1.0.5.orig/src/notator.cc 2010-11-15 18:40:22.000000000 +0100 +++ rumor-1.0.5.new/src/notator.cc 2017-05-31 15:51:42.014855383 +0200 @@ -334,7 +334,7 @@ } } else { OctaveTic=(RefPitch_wt>AbsPitch_wt?',':'\''); - NumTics=(abs(RefPitch_wt-AbsPitch_wt)+3)/7; + NumTics=(RefPitch_wt-AbsPitch_wt+3)/7; RefPitch_wt=AbsPitch_wt; } for (int i=0; i<NumTics; i++){