Sh03e - Thanks. Unchecking the Pitch box in Sonar seems to defeat inadvertent tuning in the playback!
... however, the pitch wheel on my Impulse 61 still controls detuning of whatever Sonar track has focus. Impulse modulation wheel has no effect (which is good for now). Maybe my Impulse mapping to Sonar is incorrect?
Have noticed that a selected (or in focus) Sonar track maps MIDI kbd to whatever instrument patch that MIDI track points to even though I set their Inputs to None; i.e., Track 1 Input=None, Output to TPs. Track 2 Input=None, Output to [effectively] Violin. Track 3 Input=None [but says Omni?], Output = [effectively] cello, etc. Depending which track has focus, its respective instrument patch is played with MIDI kbd strokes. Also each track is set up as a unique instrument channel 1,2,3, ...
I'd like to say this post was answered to help other users who might have surely run into this issue, but until I know exactly what Novation's Automap software is doing, I cannot make a better report.