mpc1000 + nord lead 2x

I am using JJOS latest version (free edition)

What I am trying to do is simply be able to hit rec+start on the mpc, play a couple notes (a bassline) or whatever on my Nord Lead 2x's channel A, which is set to midi channel 1. Then I want to be able to just do that again over and over for channels B,C, and D (which are respectively set to midi channels 2,3, and 4) until I have all 4 channels on the Nord sending and receiving midi data separately.

HOW DO I DO THIS

Right now whenever I try it out - I record a pattern on part A (midi channel 1), and then I touch the button for B, and the sound I'm hearing goes to the patch which is on that channel. How do I have it not do this, or is it just something that's going to happen...

THe midi setup is this

[Nord lead 2x midi out] ----> [MPC midi in A]
[MPC midi out A] ----> [Nord lead 2x midi in]

set the nord to multitimbral and assign a different midi channel for each voice.

on the mpc create a new program for each nord voice, give each a different midi channel that corresponds to the midi channels you chose on the nord.