How to Map midi

Using Arduino Audio
3

Heya,

I am using USB-MIDI (for MAX MSP routing), I can send one button at the time by using this code

/* send midi note on/off when button is pressed on Pin 2 */
 
#include "MIDIUSB.h"  
void setup()
{ 
    pinMode(2, INPUT_PULLUP);
}   
 
void loop()
{  
    if( digitalRead(2) == false ) 
    { 
        // note on 
        midiEventPacket_t noteOn = {0x09, 0x90, 60, 100}; 
        MidiUSB.sendMIDI(noteOn); 
        MidiUSB.flush(); 
        delay(500); 
 
        // note off 
        midiEventPacket_t noteOff = {0x09, 0x90, 0, 0}; 
        MidiUSB.sendMIDI(noteOff); 
        MidiUSB.flush(); 
        delay(500); 
    }
}

(same with one analog in) but I cant figure out how to send multiple ones and how to define them