EZK2 Bandmate with EZB grooves – trying to understand key/chord changes

[K-Toons Music]

Got the EZK2 upgrade from EZK and was testing the bandmate feature using EZB grooves.  I was working with Modern Funk’s “Hurry Up” tune in both instruments, starting with both in the key of C.  (In my experience, sometimes these correspondingly named tunes seem to have the same chord progressions in the various corresponding sections, but not always; in this case some of the sections are similar, but not the Intro.)  I was figuring bandmate would help me with that, but can’t figure out how.

Dragging the Intro1 groove into the EZB song track gives me a 4bar section of all E chords and changes the song key to Ami.  Doing the same in EZK2 produces quite a complicated progression and changes the key to C with an added green asterisk.  I understand that asterisk indicates that EZK2 has a suggested key signature (D), which when I change it removes the asterisk but doesn’t change the chords.  (If I change it to EZBs Ami the chords are transposed accordingly and now the asterisk is back, with a suggestion of C as the key.  Not sure what to make of that.)

I want this EZK2 Intro part to play over the E chords, same as EZB.  I could: (1) change all the chords manually to Es; or, (2) enter 4 bars of E into the song track and apply the Intro 1 groove to that (what I did with my old EZK), but instead I drag the bass Intro groove into EZK2’s bandmate.  It analyzes the chords and says they’re E’s and offers a bunch of suggested grooves (none of which is from the “Hurry Up”–so be it, I guess)  Here’s where I’m confused.  If I drag either just a suggested groove or the groove and the MIDI to the song track with an Ami song key, it turns those E’s into G’s; if I use the original suggested D song key, it turns them into As.  To get the part to be Es I need to change to F#mi, which I understand musically, but results in the EZK2 and EZB being in different keys, which screws up adding subsequent sections to the material unless I change it back using the No Transpose key change.  Basically I just don’t understand why those E chords in bandmate change when I drag to the song track

Am I misusing bandmate or missing something obvious or otherwise?  Maybe bandmate is better for external MIDI rather than MIDI from EZB or other TT libraries?  For what I wanted, my old EKZ process seems the simplest.  Appreciate any thoughts or insight.

EZkeys version: 2.0.2
Operating system: Windows 10

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