Arduino UNO based midicontroller via USB to Traktor

Using Arduino Project Guidance
1

HI!

I just hooked up 16 pots via Sparkfuns multiplexer to Mr. UNO
Here's the code (from a superb turorial by BILDR)

http://codepad.org/RtmmVUSh

I have it all workin and I get response in the serial monitor.

Now I need help and guidance to understand
the midi protocol

which midi-code should i use if i want a pot to control an effect i traktor, is it Control Change, mode change, pitchbend or perhaps velocity?

An example would be superduper nice, and how do I implement this in my code?

please help me understand this or just point me in right direction..

thank you so mutch

3

Once you get the reading from the pot use this:

void generateCC(char CC_data, char c_num, char c_val) {

  Serial.write(CC_data);
  Serial.write(c_num);
  Serial.write(c_val);

}

So, using this:
generateCC(0xB1, 21+i, value_from_pot);

will generate CC message on channel 1 (0xB1) in which 21+i is the number of pot.