Defect: quarter tones sound bad before rest

[Pavel Roskin]

Hello!

I'm trying to make a MIDI file for vocal warm-ups with a simple melody
that is transposed higher and higher by one quarter tone.

I have discovered that notes that use quarter tone sound bad before
rests or at the end of the melody.  Here's an example:

\version "2.14.2"
\score {
  { cih' eih' gih' eih' cih' eih' gih' eih' cih' }
  \layout { }
  \midi { }
}

Everything sounds right until the last cih' that bends at the end.

I'm not 100% sure that it's not a problem with the sound font or with
the player.  However, I observed the effect in 3 configurations:

timidity as is (with fluid-soundfont-gm)
timidity with /etc/timidity++.cfg removed (fluid-soundfont-lite)
frescobaldi 2.0.2 player that used fluidsynth, not timidity

The effect is less pronounced with instruments other than piano, but I
believe it's still not sounding right.

-- 
Regards,
Pavel Roskin