Now that I'm officially forked from LADSPA/DSSI, remove all of those stupid
unsigned long's that have no purpose...  and it improved CPU performance..
A LOT...  Now there are only longs where they make sense.  The downside of
removing the unsigned longs is that now I'm limited to 2 billion knobs on
any plugin, and the users cannot set their soundcard latency any higher than
2 billion samples, or a few hours of latency between hitting a note on the
keyboard and then hearing it...  Who thought that longs were a good idea
for this purpose,  in the late 90s, early 2000s no less?  ...and my efforts
on ARM probably become much more viable now too..

I just tested about 4 MIDI tracks playing in a mini-song, and there was
barely a blip of CPU usage in System Monitor, no core exceeding 10%
on average(spikes of 12%), and they normally fluctuate around 5% when I'm
doing nothing, much less..