code: /*
   * Computoser is a music-composition algorithm and a website to present the results
   * Copyright (C) 2012-2014  Bozhidar Bozhanov
   *
   * Computoser is free software: you can redistribute it and/or modify
   * it under the terms of the GNU Affero General Public License as
   * published by the Free Software Foundation, either version 3 of the
   * License, or (at your option) any later version.
   *
   * Computoser is distributed in the hope that it will be useful,
   * but WITHOUT ANY WARRANTY; without even the implied warranty of
   * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   * GNU Affero General Public License for more details.
   *
   * You should have received a copy of the GNU Affero General Public License
   * along with Computoser.  If not, see <http://www.gnu.org/licenses/>.
   */
  
  package com.music.tools;
  
  import java.util.ArrayList;
  import java.util.Arrays;
  import java.util.List;
  
  import jm.JMC;
  import jm.music.data.Note;
  import jm.music.data.Part;
  import jm.music.data.Phrase;
  import jm.music.data.Score;
  import jm.util.Play;
  
  import com.music.MainPartGenerator;
  import com.music.MainPartGenerator.MainPartContext;
  import com.music.ScoreContext;
  import com.music.model.ExtendedPhrase;
  import com.music.model.Scale;
  
  public class VariationTester {
  
      public static void main(String[] args) {
          Note[] melody = new Note[] { new Note(JMC.E5, JMC.EIGHTH_NOTE), new Note(JMC.EF5, JMC.EIGHTH_NOTE),
                  new Note(JMC.E5, JMC.EIGHTH_NOTE), new Note(JMC.EF5, JMC.EIGHTH_NOTE),
                  new Note(JMC.E5, JMC.EIGHTH_NOTE), new Note(JMC.B4, JMC.EIGHTH_NOTE),
                  new Note(JMC.D5, JMC.EIGHTH_NOTE), new Note(JMC.C5, JMC.EIGHTH_NOTE),
                  new Note(JMC.A4, JMC.EIGHTH_NOTE) };
  
          MainPartGenerator generator = new MainPartGenerator();
          Score score = new Score();
          Part mainPart = new Part("Main", 1);
          score.addPart(mainPart);
          ScoreContext ctx = new ScoreContext();
          ctx.setMetre(new int[] {3, 8});
          ctx.setScale(Scale.MINOR);
          ctx.setKeyNote(5);
          ctx.setNoteLengthCoefficient(1);
          double normalizedMeasureSize = 1d * ctx.getMetre()[0] * 4 / ctx.getMetre()[1];
          ctx.setNormalizedMeasureSize(normalizedMeasureSize);
          MainPartContext lCtx = generator.initLocalContext(score, ctx);
          lCtx.setPitches(Arrays.asList(60, 80, 80));
          ExtendedPhrase p = new ExtendedPhrase();
          p.setBaseVelocity(40);
          p.setScale(ctx.getScale());
          mainPart.add(p);
          lCtx.setCurrentPhrase(p);
          for (Note note : melody) {
              p.addNote(note);
          }
          List<Note> modified = new ArrayList<>(Arrays.asList(melody));
          generator.varyBaseStructure(lCtx, modified);
          System.out.println(modified);
          for (Note note : modified) {
              p.addNote(note);
          }
  
          Play.midi(score);
      }
  }
  