See https://community.blokas.io/t/program-change-patches/4053/5 for update notes.

A Midihub Program Change patch enabling communication between otherwise incompatible devices.

First of two patches converting between (absolute) Program Change Numbers & (relative) incrementing CC events.

This patch was written for a user who had a
• controller with Program Change up/down buttons which transmitted a changing PC number, but a
• device which only recognised a CC with fixed-values for Up and Down.

The patch was designed to *store* the just-received PC number so that it could be used to decide which fixed-CC-value should be sent on subsequent Program Changes.
This patch is a simplifies version using virtual mappings.