If I use a separate tuner, outside the computer, the tuner shows C5 when I play a C4 note. (A MIDI Monitor plugin on the tracks verifies that it receives C4 from the keyboard.)
This happens for several libraries I’ve tried: Iconica Sketch, BBCSO Discovery and some PianoBook samples. The only fix I’ve found so far is to adjust the instruments themselves. For example, by transposing the Iconica sketch patches -12 semitones.
Is that normal to have to do? Is there some other simpler setting in Cubase that fixes this?