JFugue 7. Patterns

Four notes C5 (quarter-note), D5 (quarter-note), E5 (half-note), F5 (half-note) are saved, with a rest of quarter-note between them. They have velocities of 80, 90, 100, 110. Only the JFugue attack velocity is important as this corresponds to the velocity found in DAWs.

The two buttons save midi files which are identical. In example1(), a pattern is created based on Note objects. In example2(), it is based on a string. The string method is better as it will create all the Note objects and lead to less java code.

If the octave is not indicated, 5 will be used and if duration is not specified, q (quarter-note) will be used.

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package jfugue7;

import java.io.File;
import java.io.IOException;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.TextArea;
import javafx.scene.layout.HBox;
import javafx.scene.layout.VBox;
import javafx.scene.text.Font;
import javafx.stage.Stage;
import org.jfugue.midi.MidiFileManager;
import org.jfugue.pattern.Pattern;
import org.jfugue.player.Player;
import org.jfugue.theory.Note;

public class JFugue7 extends Application {
    
    public static void main(String[] args) {
        launch(args);
    }
    
    TextArea text;
    Button button1, button2;
    
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        button1 = new Button("JFugue7_1.mid");
        button2 = new Button("JFugue7_2.mid");
        
        button1.setPrefSize(150, 100);
        button2.setPrefSize(150, 100);
                
        button1.setOnAction(e->example1());
        button2.setOnAction(e->example2());
                
        VBox examples = new VBox(10, button1, button2);
        examples.setPadding(new Insets(10));
        
        text = new TextArea();
        text.setPrefRowCount(20);
        text.setPrefColumnCount(32);
        text.setFont(Font.font("Verdana", 20));
        text.setEditable(false);
        text.setWrapText(true);
        
        HBox root = new HBox(50,examples,text);
        
        Scene scene = new Scene(root, 900, 600);
        primaryStage.setTitle("JFugue 7. Patterns");
        
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    
    private void example1() {
        Player player = new Player();
        Pattern pattern = new Pattern();
        Note note1 = new Note(60, 0.25); // C5 qurter-note
        note1.setOnVelocity((byte)80);
        Note note2 = new Note(62, 0.25); // D5 qurter-note
        note2.setOnVelocity((byte)90);
        Note note3 = new Note(64, 0.5); // E5 half-note
        note3.setOnVelocity((byte)100);
        Note note4 = new Note(65, 0.5); // F5 half-note
        note4.setOnVelocity((byte)110);
        Note rest = Note.createRest(0.25);
        pattern.add(note1,rest,note2,rest,note3,rest,note4);
        try {
            MidiFileManager
                    .savePatternToMidi(pattern,
                            new File("JFugue7_1.mid"));
        } catch (IOException ex) {
        }
        player.play(pattern);
        text.appendText("\n\n1. "+pattern);
    }
    
    private void example2() {
        Player player = new Player();
        Pattern pattern = new Pattern("Ca80 R Da90 R Eha100 R Fha120");
        try {
            MidiFileManager
                    .savePatternToMidi(pattern,
                            new File("JFugue7_2.mid"));
        } catch (IOException ex) {
        }
        player.play(pattern);
        text.appendText("\n\n2. "+pattern);
    }
}

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This is the output after both buttons have been clicked:

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