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# GNU Solfege - free ear training software
# Copyright (C) 2000, 2001, 2002, 2003, 2004, 2006, 2007, 2008 Tom Cato Amundsen
#
# This program is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
"""
FIXME update.
In addition to the names in this file, only this is public in
the mpd module:
Classes:
MusicalPitch
MusicDisplayer
"""
LOWEST_NOTENAME="c,,,,"
HIGHEST_NOTENAME="g''''''"
from const import FIRST, LAST, ALL
import parser
import soundcard
from musicalpitch import MusicalPitch, InvalidNotenameException
from interval import Interval
from mpdutils import notename_to_int, int_to_notename, int_to_user_notename
from rat import Rat
from track import Track
from _exceptions import MpdException
def music_to_tracklist(music, velocity, start=None, end=None):
"""
return a list of tracks, where track[0] use only channel 0,
track[1] only use channel 1 etc.
"""
score = parser.parse_to_score_object(music)
tracks = score.get_midi_events(velocity, start, end)
return tracks
def music_to_track(music, velocity, start=None, end=None):
score = parser.parse_to_score_object(music)
tracklist = score.get_midi_events(velocity, start, end)
track = tracklist[0]
for x in range(1, len(tracklist)):
track.merge_with(tracklist[x])
return track
def play_music(music, tempo, patch, velocity, start=None, end=None):
if type(tempo) == type(0):
bpm = tempo
nl = 4
else:
bpm, nl = tempo
score = parser.parse_to_score_object(music)
tracklist = score.get_midi_events(velocity, None, None)
tracklist[0].prepend_bpm(bpm, nl)
[track.prepend_patch(patch) for track in tracklist]
soundcard.synth.play_track(*tracklist)
def play_music3(music, tempo, instrument, start=None, end=None):
"""
Either a tuple (patch, velocity) or a tuple of 6:
(patch1, velocity1, p2, v2, p3, v3)
"""
if len(instrument) == 2:
instrument = instrument * 3
# FIXME, only the velocity from instrument[1] is used since
# music_to_tracklist is not complete.
tracklist = music_to_tracklist(music, instrument[1], start, end)
tracklist[0].prepend_patch(instrument[4])
a, b = tempo
# FIXME the bpm api is wrong. We set the tempo to one track, and it works for all.
tracklist[0].prepend_bpm(a, b)
for track in tracklist[:-1][1:]:
track.prepend_patch(instrument[2])
tracklist[-1].prepend_patch(instrument[0])
soundcard.synth.play_track(*tracklist)
##################
# midi functions #
##################
def transpose_notename(n, t):
assert isinstance(n, basestring)
assert isinstance(t, int)
# 1 2 sekund
# 3 4 ters
# 5 6 kvart
# 7 kvint
# 8 9 sekst
# 10 11 septim
return int_to_notename(notename_to_int(n) + t)
def compare_notenames(n1, n2):
return notename_to_int(n1) - notename_to_int(n2)
def select_clef(s):
"""
argument s is a string with notenames like this: " c e g c' f' g''"
"""
lowest = HIGHEST_NOTENAME
highest = LOWEST_NOTENAME
for n in s.split():
if compare_notenames(n, lowest) < 0:
lowest = n
if compare_notenames(n, highest) > 1:
highest = n
if compare_notenames(highest, "c'") < 0:
return "bass"
if compare_notenames(lowest, "c'") >= 0:
return "violin"
if compare_notenames(highest, "c'") > compare_notenames("c'", lowest):
return "violin"
else:
return "bass"
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