Connecting the T4 and another keyboard X.

I do not known anything about the G70, but I have connected other keyboards to the T4.

Make sure that the X keyboard transmits on channel 1, and that it use the MIDI interface.

Connect with MIDI cables: The the MIDI output of X to T4 Midi In A.

On the T4:

Function > Midi
Preset: Midi Off

Edit
Tab: Chord Detect
Check Midi A / USB channel 1

You may want to save these MIDI settings, for easy recall.

Exit
Tab: User
Save: Enter name

With this, channel 1 events on the X keyboard will trigger the style/chord part of the T4.

You may want to split the X keyboard, such only part of it triggers channel 1 output.

--kurt