--- reverb settings ---
If you want to have a go and having fun with reverb
settings, get PSF-o-Cycle, on neills page, and 
open top.psflib with it.  rtype of 0 results in default
rtype being used, and rdepth of 0 results in default
rdempth being used.  The same holds true for SeqVol.

The default reverb values are the correct ones.

They are:
rtype=4
rdepth=72

here are the Reverb type definitions.
0 = Off
1 = Room
2 = Studio A
3 = Studia B
4 = Studio C
5 = Hall
6 = Space
9 = Pipe.

Do not use reverbs types 7 (echo) and 8 (delay). 
these require additional parameters not currently 
implemented in the DRIVER_INFO_BLOCK:.