Need help with midi program change...

[BrainDetergent]

I have a juno g, a korg em-1 and a korg esx. The juno g is the master, I have been told that midi program change is like having a large sequencer. I have read the manuals but have not had any luck with the configuration. What I want to do is use the korg pattrens that I have made and sequence them to the Juno g Songs. Does anyone know of a step by step way to go about this. I just want to integrate my korg patterns with the juno g songs I make. Thanks for your help.