JFugue30. Row Your Boat

This plays Row Your Boat.

It uses the Mod class shown earlier to transpose the trumpet and clarinet parts above octave or below octave of the flute part.

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package jfugue30;

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;

public class JFugue30 extends Application {
    
    public static void main(String[] args) {
        launch(args);
    }
    
    TextArea text;
    Button button;
    
    @Override
    public void start(Stage primaryStage) throws Exception {
        
        button = new Button("Play Row\n\tYour\n"
                + "\tBoat");
                
        button.setOnAction(e->example());
        button.setFont(Font.font("Verdana", 16));
        button.setPrefSize(200, 100);
        
        VBox examples = new VBox(10, button);
        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 30. Row Your Boat");
        
        primaryStage.setScene(scene);
        primaryStage.show();
    }
    
    private void example() {
        
        Player player = new Player();
        
        Pattern flute = new Pattern();
        flute.add("C5q C5q C5i. D5s E5q E5i. D5s E5i. F5s G5h")
             .add("C6i C6i C6i G5i G5i G5i E5i E5i E5i C5i")
             .add("C5i C5i")
             .add("G5i. F5s E5i. D5s C5h")
             .repeat(2);
        
        Pattern trumpet = 
                new Pattern(Mod.transposeFromPattern(flute, 12));
        
        Pattern clarinet = 
                new Pattern(Mod.transposeFromPattern(flute, -12));
        
        flute.prepend("V0 I[FLUTE]");
        trumpet.prepend("V1 I[TRUMPET] R/1.0");
        clarinet.prepend("V2 I[CLARINET] R/2.0");
        
        Pattern pattern = new Pattern(flute, trumpet, clarinet);
        pattern.setTempo(108);
 
        text.appendText("\n\nPattern:\n" + pattern + "\n");
        
        try {
            MidiFileManager.savePatternToMidi(pattern,
                    new File("RowYourBoat.mid"));
        } catch (IOException ex) {
        }
       
        player.play(pattern); 
    }
}

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This is the output:

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You can open the saved midi file in a DAW. Here I use LMMS:

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