Hi Anthony,

Thanks for the tip!  I got csound5 to build in NetBSD and it does
exactly what I want (sustain AND release looping, versus sustain-only).

I had a few problems with csound5.  The NetBSD 3.0 pthread library is
more strict than Linux and Windows.  For some reason csound dies when
using realtime output with portaudio 19.  GDB 5.3 in the NetBSD 3.0 base
system doesn't work well with threads, but it seemed to die in csound5
and not portaudio.

I kept a log at
http://terrorpin.net/~ben/docs/alt/music/csound/work/csound-problem.txt

Now I'll start playing with soundfonts in csound5 and see whether my
problems there have also disappeared.  A next step would be for me to
port portmidi to NetBSD so I could use csound5 with my MIDI keyboard.

Thanks again,

Ben