Sequence Matriarch and use keyboard to control another synth?

[StereoContact]

Is there a way to sequence the Matriarch and use the keyboard to control another synth? I'm wanting the Matriarch to play a bass sequence while using the keyboard to control a poly synth. Obviously the problem is the when you press a key on the Matriarch to play a separate synth the Matriarch also plays. Is there a way to separate the keyboard from the synth so that the Matriarch sequencer will play the Matriarch and the keyboard will play another synth?