def dump(self):
out = []
for system in self.get_systems():
old_change = None
for change in system:
if change == old_change:
out.append( u'/ ' )
else:
out.append(change.get_interval_display() + change.short_extension + ' ')
old_change = change
out.append( u'\n' )
out = u''.join(out)
return ascii_map(out)
('0,4,7,11,14', 'major 9th', u'▵9'),
('0,3,7,10,14', 'minor 9th', u'-9'),
('0,4,7,10,14,17', '11th', u'11'),
('0,4,7,11,14,17', 'major 11th', u'▵11'),
('0,3,7,10,14,17', 'minor 11th', u'-11'),
('0,4,7,10,14,17,21', '13th', u'13'),
('0,4,7,11,14,17,21', 'major 13th', u'▵13'),
('0,3,7,10,14,17,21', 'minor 13th', u'-13'),
)
EXTENSIONS = [(x, y) for x, y, z in EXTENSIONS_DEEP]
EXTENSIONS_DICT = dict([(x, z) for x, y, z in EXTENSIONS_DEEP])
# ascii version of extensions
REVERSE_EXTENSIONS_DICT = dict([(ascii_map(z), x) for x, y, z in EXTENSIONS_DEEP])
class ChangeManager(models.Manager):
def with_key(self, **kwargs):
key = kwargs.pop('key', None)
qs = super(ChangeManager, self).get_query_set().select_related().filter(**kwargs)
[change.get_chord(key=key) for change in qs]
return qs
class Change(models.Model):
def __init__(self, *args, **kwargs):
self.chord = None # text representation of chord
