import javax.sound.midi.*;
public class helikasDPillid{
 public static void main(String argumendid[]) throws Exception{
			ShortMessage algus = new ShortMessage();
         ShortMessage[] lahti=new ShortMessage[8];
         int[] pillid={9, 116, 224, 247, 0, 20, 55,72, 97, 125, 157};
         int[] arvud={62, 64, 66, 67, 69, 71, 73, 74};
        lahti[0]=new ShortMessage();
     
       	ShortMessage[] kinni=new ShortMessage[8];
       	kinni[0]=new ShortMessage();

         algus.setMessage(ShortMessage.PROGRAM_CHANGE, 0, pillid[(int)(Math.random()*pillid.length)], 0);
         
         for(int i=0; i<arvud.length; i++){
         lahti[i]=new ShortMessage();
         kinni[i]=new ShortMessage();
        	lahti[i].setMessage(ShortMessage.NOTE_ON, 0, arvud[i]-6, 93);
         kinni[i].setMessage(ShortMessage.NOTE_OFF, 0, arvud[i]-6, 93);
 			}

         Sequence sequence=new Sequence(Sequence.PPQ, 8);
         Track track=sequence.createTrack();
         track.add(new MidiEvent(algus, 0));

				for(int i=0; i<32; i=i+4) {
			track.add(new MidiEvent(lahti[i/4], i));
         track.add(new MidiEvent(kinni[i/4], i+3));
         }

			for(int i=36; i<68; i=i+4) {
			track.add(new MidiEvent(lahti[7-(i-36)/4], i));
         track.add(new MidiEvent(kinni[7-(i-36)/4], i+3));
         }
         
         Sequencer sequencer=MidiSystem.getSequencer();
         sequencer.open();
         sequencer.setSequence(sequence);
         sequencer.start();
  }
}