DIY Drum Pad that Controls MIDI Device (Korg nanopad)

Hi all,

I'm working on a project which involves a pipe like structure with something like a DIY electronic drum pad on top. (like a stand alone drum) When the pad is hit it, triggers a key on a MIDI device such as the KORG nanopad http://korg.com/Product.aspx?pd=415 under the actual drum itself. This nanopad acts as a remote control for tracks created using music software on my laptop. So when the pad is hit, it starts a track.

Problem is, I have no idea how I will make the connection from the pad to the MIDI device. I was thinking about using a Peizo signal but am lost as to how to wire it up or if thats possible. If I use this instructable https://www.instructables.com/id/Electronic-Drum-Pad/ should I be able to simply solder the Peizo wires into the nano keypad relatively easily? 

Long shot but if anyone has even the slightest idea what I'm getting at here, any help would be greatly appreciated. Thanks!