GPO (and all Garrtian libs) doesn't use CC7 or CC1 like other synths or as users have been conditioned/accustomed.

It uses CC1 (mod wheel) as a volume controller!

you need to go into the MIDI event list and set all CC 1's to 127 (for the MIDI channel(s) using GPO) or delete all the CC 1's and add one at beginning set to 127 (CC1=127). And realize if you use your mod wheel on an attached device on that channel doing playback it will impact volume


That's the brute force quick solution - if you NEED modulation (what use to be CC 1) you'll need to use other CC's and or key switches

Good Luck
Larry

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