/**
* Converts the given tune to a midi sequence.
*
* @param tune The tune to be converted.
* @return The midi sequence of the tune.
*/
public Sequence toMidiSequence(Tune tune) {
Sequence sequence = null;
try {
if (instrument == null) {
Synthesizer synth = MidiSystem.getSynthesizer();
synth.open();
try {
setInstrument(synth.getAvailableInstruments()[0]);
} finally {
synth.close();
}
}
// Sequence in ticks per quarter note : PPQ = Pulse Per Quarter Note
// Resolution is expressed in ticks per beat.
// Last parameter "1" is the number of tracks.
sequence = new Sequence(Sequence.PPQ, SEQUENCE_RESOLUTION, 1);
// Set the instrument on channel 0
ShortMessage sm = new ShortMessage();
sm.setMessage(ShortMessage.PROGRAM_CHANGE, 0, instrument.getPatch().getProgram(), 0);
Track track = sequence.createTrack();
track.add(new MidiEvent(sm, 0));
// long trackLengthInTicks = track.ticks();
int lastRepeatOpen = -1;
int repeatNumber = 1;
boolean inWrongEnding = false;
KeySignature tuneKey = null;
KeySignature currentKey = null;
Hashtable partsKey = new Hashtable();
long elapsedTime = 0;
NoteAbstract[] graceNotes = null;
Music staff = tune.getMusicForAudioRendition();
Iterator it = staff.getVoices().iterator();
while (it.hasNext()) {
Voice voice = (Voice) it.next();
int i = 0; // StaffItem iterator
while (i < voice.size()) {
if (!inWrongEnding) {
// ==================================================================== TEMPO
if (voice.elementAt(i) instanceof abc.notation.Tempo) {
addTempoEventsFor(
track,
elapsedTime,
getMidiMessagesFor((Tempo) voice.elementAt(i))); // , trackLengthInTicks));
} else
/*if (voice.elementAt(i) instanceof abc.notation.PartLabel) {
//Imagine... part A in Gmaj, B in Amin
//in tune you have K:G, P:A, ... P:B, K:Am
//if you have part order ABA, when you return to A
//you stay in Amin. This stores the tuneKey when a
//new part appear, and restitute it when part is played again
abc.notation.PartLabel pl = (abc.notation.PartLabel) voice.elementAt(i);
if (partsKey.get(pl.getLabel()+"") == null) {
partsKey.put(pl.getLabel()+"", tuneKey);
} else {
tuneKey = (KeySignature) partsKey.get(pl.getLabel()+"");
}
}
else*/
// ==================================================================== KEY SIGNATURE
if (voice.elementAt(i) instanceof abc.notation.KeySignature) {
tuneKey = (KeySignature) (voice.elementAt(i));
currentKey = new KeySignature(tuneKey.getAccidentals());
} else
// ==================================================================== NOTE
// Notes ending ties should be ignored. Already taken into
// account in getNoteLengthInTicks(Note)
if (voice.elementAt(i) instanceof abc.notation.Note
&& !((abc.notation.Note) voice.elementAt(i)).isEndingTie()) {
Note note = (Note) voice.elementAt(i);
long noteDuration;
boolean fermata = false;
Vector decorationNotes = new Vector();
if (note.hasGeneralGracing() || note.hasDecorations()) {
Decoration[] d = note.getDecorations();
for (int j = 0; j < d.length; j++) {
switch (d[j].getType()) {
case Decoration.FERMATA:
case Decoration.FERMATA_INVERTED:
fermata = true;
break;
case Decoration.LOWERMORDENT:
case Decoration.UPPERMORDENT:
case Decoration.DOUBLE_LOWER_MORDANT:
case Decoration.DOUBLE_UPPER_MORDANT:
case Decoration.TRILL:
case Decoration.TURN: // GRUPETTO_UP
case Decoration.TURN_INVERTED: // GRUPETTO_DOWN
case Decoration.TURNX:
case Decoration.TURNX_INVERTED:
Note n = new Note(note.getHeight());
n.setAccidental(note.getAccidental(currentKey));
Note o =
new Interval(Interval.SECOND, Interval.MAJOR, Interval.UPWARD)
.calculateSecondNote(n);
Note m =
new Interval(Interval.SECOND, Interval.MAJOR, Interval.DOWNWARD)
.calculateSecondNote(n);
// TODO ornament templates: regular, musette, balkan...
// n.setStrictDuration(Note.SIXTEENTH);
// o.setDuration((short)(Note.EIGHTH+Note.SIXTEENTH));
o.setAccidental(Accidental.NONE);
m.setAccidental(Accidental.NONE);
n.setStrictDuration(Note.THIRTY_SECOND);
m.setStrictDuration(Note.THIRTY_SECOND);
o.setStrictDuration(Note.THIRTY_SECOND);
switch (d[j].getType()) {
case Decoration.DOUBLE_LOWER_MORDANT:
decorationNotes.add(n);
decorationNotes.add(m);
case Decoration.LOWERMORDENT:
decorationNotes.add(n);
decorationNotes.add(m);
break;
case Decoration.DOUBLE_UPPER_MORDANT:
case Decoration.TRILL:
decorationNotes.add(n);
decorationNotes.add(o);
case Decoration.UPPERMORDENT:
decorationNotes.add(n);
decorationNotes.add(o);
break;
case Decoration.TURNX_INVERTED:
case Decoration.TURN:
decorationNotes.add(o);
decorationNotes.add(n);
decorationNotes.add(m);
break;
case Decoration.TURNX:
case Decoration.TURN_INVERTED:
decorationNotes.add(m);
decorationNotes.add(n);
decorationNotes.add(o);
}
break;
}
}
// currently not used
// future use: playing rolls, slides, etc.
}
long graceNotesDuration = 0;
if (note.hasGracingNotes() || (decorationNotes.size() > 0)) {
graceNotes = note.getGracingNotes();
// gracing are eighth note for graphical rendition
// and because that's it in the parser
// adapt duration to note length
int divisor = 1;
if (note.getStrictDuration() >= Note.HALF) divisor = 1; // grace is an eighth
else if (note.getStrictDuration() >= Note.QUARTER) divisor = 2; // 16th
else if (note.getStrictDuration() >= Note.EIGHTH) divisor = 4; // 32nd
else divisor = 8; // 64th
if (note.hasGracingNotes()) {
for (int j = 0; j < graceNotes.length; j++) {
noteDuration = getNoteLengthInTicks(graceNotes[j], staff) / divisor;
graceNotesDuration += noteDuration;
if (graceNotes[j] instanceof Note)
playNote(
(Note) graceNotes[j], i, currentKey, elapsedTime, noteDuration, track);
else
playMultiNote(
(MultiNote) graceNotes[j],
i,
currentKey, /*elapsedTime,*/
noteDuration,
track,
staff);
elapsedTime += noteDuration;
}
}
for (int j = 0; j < decorationNotes.size(); j++) {
noteDuration = getNoteLengthInTicks((Note) decorationNotes.elementAt(j), staff);
graceNotesDuration += noteDuration;
playNote(
(Note) decorationNotes.elementAt(j),
i,
currentKey,
elapsedTime,
noteDuration,
track);
elapsedTime += noteDuration;
}
}
// The note duration if the note isn't part of a tuplet.
noteDuration = getNoteLengthInTicks(note, staff) - graceNotesDuration;
if (noteDuration <= 0) // in case of too much grace notes
noteDuration = getNoteLengthInTicks(note, staff);
if (fermata) noteDuration *= 2;
playNote(note, i, currentKey, elapsedTime, noteDuration, track);
elapsedTime += noteDuration;
} else
// ==================================================================== MULTI NOTE
if ((voice.elementAt(i) instanceof abc.notation.MultiNote)) {
MultiNote multiNote = (MultiNote) voice.elementAt(i);
playMultiNote(multiNote, i, currentKey, elapsedTime, track, staff);
elapsedTime += getNoteLengthInTicks(multiNote, staff);
}
} // endif (!inWrongEnding)
// ====================================================================== REPEAT BAR LINE
if (voice.elementAt(i) instanceof abc.notation.RepeatBarLine) {
RepeatBarLine bar = (RepeatBarLine) voice.elementAt(i);
if (repeatNumber < bar.getRepeatNumbers()[0] && lastRepeatOpen != -1) {
repeatNumber++;
i = lastRepeatOpen;
} else if (repeatNumber > bar.getRepeatNumbers()[0]) inWrongEnding = true;
else inWrongEnding = false;
} else
// ====================================================================== BAR LINE OPEN /
// CLOSE
if (voice.elementAt(i) instanceof abc.notation.BarLine) {
// currentKey = new KeySignature(tuneKey.getAccidentals());
switch (((BarLine) (voice.elementAt(i))).getType()) {
case BarLine.SIMPLE:
break;
case BarLine.REPEAT_OPEN:
lastRepeatOpen = i;
repeatNumber = 1;
break;
case BarLine.REPEAT_CLOSE:
if (repeatNumber < 2 && lastRepeatOpen != -1) {
repeatNumber++;
i = lastRepeatOpen;
} else {
repeatNumber = 1;
lastRepeatOpen = -1;
}
break;
// TODO case BarLine.BEGIN_AND_END_REPEAT
}
}
// Whatever kind of bar line it is
if (voice.elementAt(i) instanceof abc.notation.BarLine) {
currentKey = new KeySignature(tuneKey.getAccidentals());
}
i++;
} // end while each element in voice
} // end while each voice in music
} catch (InvalidMidiDataException e) {
e.printStackTrace();
} catch (Exception e) {
e.printStackTrace();
}
return sequence;
}
protected void convert(Document doc, Music music, Element musicElement) {
int measureNb = 1;
Element currentMeasureEl = doc.createElement(MEASURE_TAG);
int addedMusicElement = 0;
musicElement.appendChild(currentMeasureEl);
Element lastShorterThanQuarterNote = null;
// KeySignature key = null;
// TimeSignature time = null;
int voltaRunning = 0;
currentMeasureEl.setAttribute(NUMBER_ATTRIBUTE, new Integer(measureNb).toString());
Iterator it = music.getVoices().iterator();
while (it.hasNext()) {
Voice voice = (Voice) it.next();
for (int i = 0; i < voice.size(); i++) {
// MusicElement current = (MusicElement) music.elementAt(i);
if (voice.elementAt(i) instanceof Note) {
Note note = (Note) voice.elementAt(i);
Element noteElement = convert(doc, note);
if (note.getStrictDuration() < Note.QUARTER) {
if (lastShorterThanQuarterNote == null) {
// this is the first note of a group
lastShorterThanQuarterNote = noteElement;
Element beamNode = doc.createElement(BEAM_TAG);
beamNode.setAttribute(NUMBER_ATTRIBUTE, "1");
Node text = doc.createTextNode("begin");
beamNode.appendChild(text);
noteElement.appendChild(beamNode);
} else {
// this is part of a previously created beam
lastShorterThanQuarterNote = noteElement;
Element beamNode = doc.createElement(BEAM_TAG);
beamNode.setAttribute(NUMBER_ATTRIBUTE, "1");
// noteElement.appendChild(lastShorterThanQuarterNote);
Node text = doc.createTextNode("continue");
beamNode.appendChild(text);
noteElement.appendChild(beamNode);
}
}
currentMeasureEl.appendChild(noteElement);
addedMusicElement++;
} else if (voice.elementAt(i) instanceof MultiNote) {
Node[] nodes = convert(doc, (MultiNote) voice.elementAt(i));
for (int j = 0; j < nodes.length; j++) currentMeasureEl.appendChild(nodes[j]);
addedMusicElement++;
} else if (voice.elementAt(i) instanceof TimeSignature) {
// time = (TimeSignature)music.elementAt(i);
appendTo(currentMeasureEl, (TimeSignature) voice.elementAt(i), doc);
} else if (voice.elementAt(i) instanceof KeySignature) {
// key = (KeySignature)music.elementAt(i);
appendTo(currentMeasureEl, (KeySignature) voice.elementAt(i), doc);
} else if (voice.elementAt(i) instanceof BarLine) {
BarLine barline = ((BarLine) voice.elementAt(i));
Element barLineNode = null;
if (voltaRunning > 1) { // end of volta > 2 on the first bar
// line we find
barLineNode = doc.createElement(BAR_LINE_TAG);
currentMeasureEl.appendChild(barLineNode);
Element endingEl = doc.createElement("ending");
endingEl.setAttribute(NUMBER_ATTRIBUTE, Integer.toString(voltaRunning));
endingEl.setAttribute(TYPE_ATTRIBUTE, "discontinue");
barLineNode.appendChild(endingEl);
voltaRunning = 0;
}
if (barline instanceof RepeatBarLine) { // start of volta
RepeatBarLine repeatBarLine = (RepeatBarLine) barline;
if (barLineNode == null) {
barLineNode = doc.createElement(BAR_LINE_TAG);
currentMeasureEl.appendChild(barLineNode);
}
Element endingEl = doc.createElement("ending");
endingEl.setAttribute(
NUMBER_ATTRIBUTE, Integer.toString(repeatBarLine.getRepeatNumbers()[0]));
endingEl.setAttribute(TYPE_ATTRIBUTE, "start");
barLineNode.appendChild(endingEl);
voltaRunning = repeatBarLine.getRepeatNumbers()[0];
}
if (barline.getType() == BarLine.REPEAT_CLOSE) { // Close
// barline
if (barline.toString().equals(":|")) {
if (barLineNode == null) {
barLineNode = doc.createElement(BAR_LINE_TAG);
currentMeasureEl.appendChild(barLineNode);
}
if (voltaRunning == 1) {
Element endingEl = doc.createElement("ending");
endingEl.setAttribute(NUMBER_ATTRIBUTE, Integer.toString(voltaRunning));
endingEl.setAttribute(TYPE_ATTRIBUTE, "stop");
barLineNode.appendChild(endingEl);
voltaRunning = 0;
}
barLineNode.setAttribute(LOCATION_ATTRIBUTE, "right");
Element repeatNode = doc.createElement(REPEAT_TAG);
repeatNode.setAttribute(DIRECTION_ATTRIBUTE, "backward");
barLineNode.appendChild(repeatNode);
}
}
if (addedMusicElement == 0) {
if (barline.getType() == BarLine.REPEAT_OPEN) {
if (barLineNode == null) {
barLineNode = doc.createElement(BAR_LINE_TAG);
currentMeasureEl.appendChild(barLineNode);
}
barLineNode.setAttribute(LOCATION_ATTRIBUTE, "left");
Element repeatNode = doc.createElement(REPEAT_TAG);
repeatNode.setAttribute(DIRECTION_ATTRIBUTE, "forward");
barLineNode.appendChild(repeatNode);
}
} else if (addedMusicElement > 0) { // a bar line has been
// detected , do we create a
// new measure ?
currentMeasureEl = doc.createElement(MEASURE_TAG);
measureNb++;
currentMeasureEl.setAttribute(NUMBER_ATTRIBUTE, new Integer(measureNb).toString());
musicElement.appendChild(currentMeasureEl);
if (barline.getType() == BarLine.REPEAT_OPEN) {
if (barLineNode == null) {
barLineNode = doc.createElement(BAR_LINE_TAG);
barLineNode.setAttribute(LOCATION_ATTRIBUTE, "left");
}
Element repeatNode = doc.createElement(REPEAT_TAG);
repeatNode.setAttribute(DIRECTION_ATTRIBUTE, "forward");
barLineNode.appendChild(repeatNode);
currentMeasureEl.appendChild(barLineNode);
}
addedMusicElement = 0;
}
} else if (voice.elementAt(i) instanceof EndOfStaffLine) {
Element printEl = doc.createElement("print");
printEl.setAttribute("new-system", "yes");
currentMeasureEl.appendChild(printEl);
}
if (voice.elementAt(i) instanceof NotesSeparator) {
// Node lastBeam=;
if (lastShorterThanQuarterNote != null) {
Element beamNode;
if (lastShorterThanQuarterNote.getElementsByTagName(BEAM_TAG).getLength() == 0)
beamNode = doc.createElement(BEAM_TAG);
else
beamNode =
(Element) lastShorterThanQuarterNote.getElementsByTagName(BEAM_TAG).item(0);
beamNode.setAttribute(NUMBER_ATTRIBUTE, "1");
beamNode.setTextContent("end");
lastShorterThanQuarterNote.appendChild(beamNode);
lastShorterThanQuarterNote = null;
}
}
} // end each element in voice
} // end each voice in music
}
