I have a Roland gr20 guitar synth but i dont like controlling it with the guitar gk3 pickup because the tracking is too unreliable...

if i got a midi controler keyboard with a 'midi out' and plugged that into the 'midi in' on my guitar synth, would i be able to play the patches on the gr20 using the keyboard?

thanks in advance, i've been searching everywhere for this.
Dancing In Your Dust