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.model;
  
  import java.util.Set;
  
  import com.google.common.collect.Sets;
  
  public enum ToneGroups {
      STABLE(ToneType.TONIC, ToneType.MEDIANT, ToneType.DOMINANT),
      UNSTABLE(ToneType.SUPERTONIC, ToneType.SUBDOMINANT, ToneType.SUBMEDIANT, ToneType.LEADING_OR_SUBTONIC),
      TONAL(ToneType.TONIC, ToneType.SUBDOMINANT, ToneType.DOMINANT), MODAL;
      private final Set<ToneType> toneTypes;
      private ToneGroups(ToneType... toneTypes) {
          this.toneTypes = Sets.newHashSet(toneTypes);
      }
      public Set<ToneType> getToneTypes() {
          return toneTypes;
      }
  }