Missing Instrument in Mixer

I know this has been reported before but previous posts don’t match or don’t help. Forcing a reload of the NP Template doesn’t crack it, for example.

I’m on a M1 Mac Studio, running in Rosetta mode because of NotePerformer. I attach a cut down score (Pf and Flugelhorn). Only the Flugelhorn appears in the Mixer.

I managed to fix the problem by starting a new project and copy/paste all material but thought I’d report in case it’s a recurring problem…

Missing Instrument.dorico.zip (564.1 KB)

Have you reapplied the Playback Template in Play mode?

Yes, swapped away from NP then back. Didn’t help.

I’m not at my computer just now, so please confirm that you’re talking about the NotePerformer mixer, not the Dorico mixer. NotePerformer only ever shows one channel in the Dorico mixer (or possibly one channel per instance, if there are multiple NotePerformer instances).


Thanks, Leo. I’d quite forgotten that. I’ve had a few months away from Dorico and this had gone completely out of my mind. Problem solved…

Note that you can use the new NotePerformer (SO) playback template provided by @David_Tee last month to have one instance of NotePerformer per instrument, so you can really use Dorico’s mixer properly.

I’ve used it already in quite some of my scores and am very happy with the ability to control everything from Dorico’s mixer.


I know it’s been about 8 or 9 mo. since the last posting here but I just got the NP4 update and now the Dorico mixer decides to show all the channels that I am using but only the instances in Dorico mixer can be edited. How do I get it back to just having the one instance (or so many) of NP showing up in the Dorico mixer instead of all the channels of all the instances? It really clogs up the area with this happening. Thanks so much in advance;) sort of looks like this

Number of audio outputs in the template. I had that unchecked. Sorry for the bother;)