switch (alter) {
                                        case -2: note.addAccidental(0, new Vex.Flow.Accidental("bb")); break;
                                        case -1: note.addAccidental(0, new Vex.Flow.Accidental("b")); break;
                                        case 1: note.addAccidental(0, new Vex.Flow.Accidental("#")); break;
                                        case 2: note.addAccidental(0, new Vex.Flow.Accidental("#")); break;