import Turtle;

/* create a parent class for Note */

class Note {

    static int wholeNoteTime = 60;

    public static int getWholeNoteTime () {
		return wholeNoteTime;
    }

    public static void setWholeNoteTime(int centiseconds) {
		if(centiseconds >= 0 )
			wholeNoteTime = centiseconds;
    }

    int pitchIndex;
    float duration;

    public Note(int pitchIndex, float duration) {
		this.pitchIndex = pitchIndex;
		this.duration = duration;
    }

    public Note(float duration) {
		this.pitchIndex = -1;
		this.duration = duration;
    }

    public void play() {
		int centiseconds = Math.round(duration*wholeNoteTime);
		if(pitchIndex == -1) {
		    Turtle.sleep(centiseconds*10);
		} else {
		    Turtle.playNote(pitchIndex,centiseconds);
		}
   	 }
}

interface NoteValues {
    public final int A1 = 28;
    public final int A1_SHARP = 29;
    public final int B1_FLAT = 29;
    public final int B1 = 30;
    public final int C1 = 31;
    public final int C1_SHARP = 32;
    public final int D1_FLAT = 32;
    public final int D1 = 33;
    public final int E1 = 35;
    public final int F1 = 36;
    public final int G1 = 38;
    public final int A2 = 40;
    public final int B2 = 42;
    public final int C2 = 43;
    public final int D2 = 45;
    public final int E2 = 47;
}

interface NoteTimes {
    public final float whole = 1.0f;
    public final float half = 0.5f;
    public final float quarter = 0.25f;
    public final float eighth = 0.125f;
    public final float sixteenth = 0.0625f;
}

class Task1 implements NoteValues, NoteTimes {

    public static void main(String args[]) {
	Note.setWholeNoteTime(120);
	Note rest = new Note(quarter);
	Note c = new Note(C1,quarter);
	Note d = new Note(D1,quarter);
	Note e = new Note(E1,quarter);
	Note f = new Note(F1,eighth);
	Note g = new Note(G1,quarter);

	e.play();
	d.play();
	c.play();
	rest.play();
	e.play();
	d.play();
	c.play();
	rest.play();
	g.play();
	f.play();
	f.play();
	e.play();
    }
}