https://sami.boukortt.com/plugins/intersect#Intersect
https://sami.boukortt.com/plugins/intersect#SymmetricDifference
https://sami.boukortt.com/plugins/intersect#Upmix
+http://drumkv1.sourceforge.net/lv2
+http://rakarrack.sourceforge.net/effects.html#awha
#
# Rakarrack takes special handling to get these lv2 plugins to work;
# the library needs to be linked using -Bsymbolic-functions ;