This is really good. I'm having fun using it.
BUT! Three changes that can improve it.
1# Patterns Window is too small to be convenient for bigger works. Suggestion: Make it able to be in separate window, so we could use it on secondary monitor. Or add categories by "instruments".
#2 New Pattern from existing. Suggestion: Small Icon on every Pattern, that will just do that.
#3 Advanced filter mode. Replace one notes line to be a “clickable” and when clicked, it will enable filter edit of that column.