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import javax.sound.midi.*;
import java.io.*;
public class MusicTest2 {
    public static void main(String[] args) throws Exception{
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        while(true) {
            System.out.print("Введите номер инструмента: ");
            int instrument = Integer.parseInt(reader.readLine());
            if(instrument > 127 || instrument < 0){
                System.out.println("Error! Недопустимое значение!");
                break;
            }
            System.out.print("Введите номер ноты: ");
            int nota = Integer.parseInt(reader.readLine());
            if(nota > 127 || nota < 0){
                System.out.println("Error! Недопустимое значение!");
                break;
            }
            MusicTest2 testik = new MusicTest2();
            testik.play(instrument, nota);
        }
    }
    public void play(int instrument, int nota){
        try{
            Sequencer sequencer = MidiSystem.getSequencer();
            sequencer.open();
            Sequence seq = new Sequence(Sequence.PPQ, 4);
            Track track = seq.createTrack();
            ShortMessage a = new ShortMessage();
            a.setMessage(192, 1, instrument, 100);
            MidiEvent changeInstrument = new MidiEvent(a, 1);
            track.add(changeInstrument);
            ShortMessage b = new ShortMessage();
            b.setMessage(144, 1, nota, 100);
            MidiEvent event = new MidiEvent(b, 1);
            track.add(event);
            ShortMessage c = new ShortMessage();
            c.setMessage(128, 1, nota, 100);
            MidiEvent event1 = new MidiEvent(c, 16);
            track.add(event1);
            sequencer.setSequence(seq);
            sequencer.start();
        }catch(Exception ex){
            ex.printStackTrace();
        }
    }
}