Tiri midi controller

//Tiri Midi controller for Tom Igoe's tangible interaction class 2017
//inspied by Tom Igoe 


#include <SoftwareSerial.h>
 
const int switchPin = 10;  // The switch is on Arduino pin 10
const int LEDpin = 13;     //  Indicator LED
 
 // Variables:
 byte note = 0;              // The MIDI note value to be played
 int AnalogValue = 0;        // value from the analog input
 int lastNotePlayed = 0;     // note turned on when you press the switch
 int lastSwitchState = 0;    // state of the switch during previous time through the main loop
 int currentSwitchState = 0;
 
//software serial
SoftwareSerial midiSerial(2, 3); 
 
 void setup() {
   pinMode(switchPin, INPUT);
   pinMode(LEDpin, OUTPUT);
  Serial.begin(9600);
   blink(3);
 
    midiSerial.begin(31250);
 
 }
 
 void loop() {
   AnalogValue = analogRead(0);
   //convert to 0-127
   note = AnalogValue/8;
   currentSwitchState = digitalRead(switchPin);
   // Check to see that the switch is pressed
   if (currentSwitchState == 1) {
     //  check to see that the switch wasn't pressed last time
     if (lastSwitchState == 0) {
       // set the note value based on the analog value, plus a couple octaves:
       // note = note + 60;
       // start a note playing:
       noteOn(0x90, note, 0x40); 
       lastNotePlayed = note;
       digitalWrite(LEDpin, HIGH);
     }
   }
   else {  
     if (lastSwitchState == 1) {
       noteOn(0x90, lastNotePlayed, 0x00);
       digitalWrite(LEDpin, LOW);
     }
   }
   lastSwitchState = currentSwitchState;
 }
 
 
 void noteOn(byte cmd, byte data1, byte  data2) {
   midiSerial.write(cmd);
  midiSerial.write(data1);
   midiSerial.write(data2);
 
  
   Serial.print("cmd: ");
    Serial.print(cmd);
      Serial.print(", data1: ");
  Serial.print(data1);
     Serial.print(", data2: ");
   Serial.println(data2);
 }
 

 void blink(int howManyTimes) {
   int i;
   for (i=0; i< howManyTimes; i++) {
     digitalWrite(LEDpin, HIGH);
     delay(100);
     digitalWrite(LEDpin, LOW);
     delay(100);
   }
 }