world.sound.tunes
Class Chord

java.lang.Object
  world.sound.tunes.Chord

public class Chord
extends java.lang.Object

A class to represent a collection of notes to be played on one instrument at the same time. Individual notes do not need to have the same duration. Based in part on a class originally designed by Viera K. Proulx.

Field Summary

static int	DEFAULT_DUR The default Note duration.
static Chord	noplay A singleton Chord representing silence
java.util.ArrayList<Note>	notes the list of notes in this chord

Constructor Summary

Chord()
The default constructor

Chord(int... pitches)
Creates a Chord from a sequence of Pitches (Note numbers)

Chord(Note... notes)
Create a Chord from a sequence of Notes.

Method Summary

void	addNote(int pitch, int duration) Add a Note with the given pitch and duration to this Chord.
void	addNote(Note n) Add a given note to this Chord.
boolean	containsNote(Note note) Does this chord contain the given note?
Chord	copy() Make a copy of this Chord by copying its Notes
boolean	isSilent() Have all notes in this chord finish playing?
Chord	nextBeat() Reduce all the Notes in this Chord by a single beat.
int	size() Get the number of Notes in this Chord.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DEFAULT_DUR

public static final int DEFAULT_DUR

The default Note duration.

See Also:

Constant Field Values

notes

public java.util.ArrayList<Note> notes

the list of notes in this chord

noplay

public static final Chord noplay

A singleton Chord representing silence

Constructor Detail

Chord

public Chord()

The default constructor

Chord

public Chord(int... pitches)

Creates a Chord from a sequence of Pitches (Note numbers)

Chord

public Chord(Note... notes)

Create a Chord from a sequence of Notes.

Method Detail

addNote

public void addNote(Note n)

Add a given note to this Chord.

addNote

public void addNote(int pitch,
                    int duration)

Add a Note with the given pitch and duration to this Chord.

nextBeat

public Chord nextBeat()

Reduce all the Notes in this Chord by a single beat. Produces a Chord representing the list of notes that have stopped playing.

isSilent

public boolean isSilent()

Have all notes in this chord finish playing?

copy

public Chord copy()

Make a copy of this Chord by copying its Notes

size

public int size()

Get the number of Notes in this Chord.

containsNote

public boolean containsNote(Note note)

Does this chord contain the given note?