Hello SKresge,
Welcome to the forum, and thanks for the interest in Hauptwerk.
Please try:
- Exit Hauptwerk if it's running.
- Make sure that no other audio or MIDI software is launched/running on the computer, in case something else is also receiving the MIDI messages from your Yamaha keyboard and playing sound.
- Make sure that the volume control on your Yamaha is turned fully down (in case it's trying to play sound itself).
- Launch Hauptwerk.
- On the 'General settings | MIDI ports | MIDI IN ports' screen tab, make sure that your Yamaha's USB-MIDI entry is ticked in the *left-hand* ('Console MIDI IN') column, and that nothing else at all is ticked (in either column) on that screen tab, and that nothing at all is ticked (in either column) on the 'MIDI OUT ports' tab of the screen.
- OK the screen.
- On the 'General settings | Audio outputs' screen, make sure that your computer's audio interface is selected as the output device (or the computer's built-in audio output, if you don't have a dedicated audio interface for the computer). In particular, make sure that your Yamaha (or any software device related to it), is *not* selected as the audio output device (if relevant).
- OK the screen.
- Load the St. Anne's organ.
- Right-click on the virtual Great manual, select 'Auto-detect ...', and follow the on-screen instructions to press the appropriate keys on your Yamaha.
- The 'Done' button should become enabled if Hauptwerk has heard suitable MIDI messages. Click it.
Does that solve it?