import sys, time, re
import music21
import mingus.core.notes as notes
import mingus.core.value as value
sys.path.append('/usr/local/lib/python2.7/dist-packages/fluidsynth/')
from mingus.midi import fluidsynth
from mingus.containers.Note import Note
from mingus.containers.Bar import Bar
fluidsynth.init('/usr/share/sounds/sf2/FluidR3_GM.sf2',"alsa")

# Convert music21 note to mingus note.
def mingify(note):
    accidental = re.compile("[A-Z](-|#)[0-9]")
    if accidental.match(note):
        if '-' not in note: note = Note("%s%s-%s" % (note[0], note[1], note[2]))
        else: note = Note(note.replace('-', 'b-'))
    else: note = Note("%s-%s" % (note[0], note[1]))
    return note
    
# Get the notes. Note that you need to convert "E-" to "Eb" since you're converting music21 to mingus.
with open('oscar2trigrams.txt', 'rb') as f:
    allnotes = [] # list of Note objects
    alldurations = []
    for line in f:
        items = line.split(',')
        note = items[0].rstrip()
        allnotes.append(mingify(note))
        alldurations.append(float(items[1]))

# Get the durations. 
# print allnotes
# print alldurations
print len(allnotes)
print sum(alldurations)

# Put notes into one huge bar.
b = Bar()
b.set_meter((len(allnotes) * 4, 4))
for note in allnotes:
    b.place_notes(note, value.eighth)

# Assert # of notes in bar == total # of notes.
print len(b)

# For now, just adjust tempo to do faster/slower.
fluidsynth.play_Bar(b, 1, 375)