# myFavoriteMelody.py    Version 1.0     17-Nov-2006  (bzm)
#
# This program demonstrates how to create more interesting music.
#
# Plays a melody as a round in three parts.
#
# written by Andrew Sorensen and Andrew Brown (ported to Python by Bill Manaris)
#

from jMusic import *

# Create the data objects we want to use
score = Score("Row Your Boat")

# Parts can have a name, instrument, and channel.
flute = Part("Flute", FLUTE, 0)
trumpet = Part("Trumpet", TRUMPET, 1)
clarinet = Part("Clarinet", CLARINET, 2)

# Let's write the music in a convenient way...
# "Row, row, row your boat gently down the stream"
pitches1 = [C4, C4, C4, D4, E4, E4, D4, E4, F4, G4]
rhythms1 = [QN, QN, EN, EN, QN, EN, EN, EN, EN, HN]

# "merrily, merrily, merrily, merrily"
pitches2 = [C5, C5, G4, G4, E4, E4, C4, C4]
rhythms2 = [EN, EN, EN, EN, EN, EN, EN, EN]

# "life is but a dream."
pitches3 = [G4, F4, E4, D4, C4]
rhythms3 = [EN, EN, EN, EN, HN]

# add the notes to a phrase
phrase1 = Phrase(0.0)
phrase1.addNoteList(pitches1, rhythms1)
phrase1.addNoteList(pitches2, rhythms2)
phrase1.addNoteList(pitches3, rhythms3)

# make two new phrases and change start times to make a round
phrase2 = phrase1.copy()
phrase2.setStartTime(4.0)        # four beats into the piece

phrase3 = phrase1.copy()
phrase3.setStartTime(8.0)        # eight beats into the piece

# play different parts in different octaves
Mod.transpose(phrase1, 12)
Mod.transpose(phrase3, -12)

# repeat each phrase a second time
Mod.repeat(phrase1, 2)
Mod.repeat(phrase2, 2)
Mod.repeat(phrase3, 2)

# add phrases to the parts
flute.addPhrase(phrase1) 
trumpet.addPhrase(phrase2)
clarinet.addPhrase(phrase3)

# add parts to the score
score.addPart(flute)
score.addPart(trumpet)
score.addPart(clarinet)  
 
# play the score as MIDI (and exit, since JavaSound does not
# shut down properly)
Play.midi(score, 1)
   
# display the score in a music notation (CPN) window
View.notate(score)

# write the score to a MIDI file
Write.midi(score, "rowboat.mid")