def test_minor_sevenths(self):
minors = {
"C" : "Bb",
"Cb" : "Bbb",
"C#" : "B",
"E" : "D",
"Eb": "Db",
"E#": "D#",
"E####" : "D####",
"B" : "A",
"Bb" : "Ab"
}
for x in minors.keys():
self.assertEqual(minors[x], intervals.minor_seventh(x),\
"The minor seventh of %s is not %s, expecting %s" % (x, intervals.minor_seventh(x), minors[x]))
def test_minor_sevenths(self):
minors = {
'C': 'Bb',
'Cb': 'Bbb',
'C#': 'B',
'E': 'D',
'Eb': 'Db',
'E#': 'D#',
'E####': 'D####',
'B': 'A',
'Bb': 'Ab',
}
for x in list(minors.keys()):
self.assertEqual(minors[x], intervals.minor_seventh(x),
'The minor seventh of %s is not %s, expecting %s'
% (x, intervals.minor_seventh(x), minors[x]))
def ascending(self):
notes = [self.tonic]
notes.append(intervals.minor_third(notes[0]))
notes.append(intervals.perfect_fourth(notes[0]))
notes.append(intervals.perfect_fifth(notes[0]))
notes.append(intervals.minor_seventh(notes[0]))
return notes * self.octaves + [notes[0]]
def test_minor_sevenths(self):
minors = {
'C': 'Bb',
'Cb': 'Bbb',
'C#': 'B',
'E': 'D',
'Eb': 'Db',
'E#': 'D#',
'E####': 'D####',
'B': 'A',
'Bb': 'Ab',
}
for x in list(minors.keys()):
self.assertEqual(minors[x], intervals.minor_seventh(x),
'The minor seventh of %s is not %s, expecting %s'
% (x, intervals.minor_seventh(x), minors[x]))
def suspended_seventh(note):
"""Build a suspended (flat) seventh chord on note.
Example:
>>> suspended_seventh('C')
['C', 'F', 'G', 'Bb']
"""
return suspended_fourth_triad(note) + [intervals.minor_seventh(note)]
def dominant_sixth(note):
"""Build the altered chord 6/7 on note.
Example:
>>> dominant_sixth('C')
['C', 'E', 'G', 'A', 'Bb']
"""
return major_sixth(note) + [intervals.minor_seventh(note)]
def augmented_minor_seventh(note):
"""Build an augmented minor seventh chord on note.
Example:
>>> augmented_minor_seventh('C')
['C', 'E', 'G#', 'Bb']
"""
return augmented_triad(note) + [intervals.minor_seventh(note)]
def minor_seventh(note):
"""Build a minor seventh on note.
Example:
>>> minor_seventh('C')
['C', 'Eb', 'G', 'Bb']
"""
return minor_triad(note) + [intervals.minor_seventh(note)]
def augmented_minor_seventh(note):
"""Build an augmented minor seventh chord on note.
Example:
>>> augmented_minor_seventh('C')
['C', 'E', 'G#', 'Bb']
"""
return augmented_triad(note) + [intervals.minor_seventh(note)]
def minor_seventh(note):
"""Build a minor seventh on note.
Example:
>>> minor_seventh('C')
['C', 'Eb', 'G', 'Bb']
"""
return minor_triad(note) + [intervals.minor_seventh(note)]
def dominant_sixth(note):
"""Build the altered chord 6/7 on note.
Example:
>>> dominant_sixth('C')
['C', 'E', 'G', 'A', 'Bb']
"""
return major_sixth(note) + [intervals.minor_seventh(note)]
def suspended_seventh(note):
"""Build a suspended (flat) seventh chord on note.
Example:
>>> suspended_seventh('C')
['C', 'F', 'G', 'Bb']
"""
return suspended_fourth_triad(note) + [intervals.minor_seventh(note)]
def dominant_seventh(note):
"""Build a dominant seventh on note.
Example:
>>> dominant_seventh('C')
['C', 'E', 'G', 'Bb']
"""
return major_triad(note) + [intervals.minor_seventh(note)]
def dominant_seventh(note):
"""Build a dominant seventh on note.
Example:
>>> dominant_seventh('C')
['C', 'E', 'G', 'Bb']
"""
return major_triad(note) + [intervals.minor_seventh(note)]
def half_diminished_seventh(note):
"""Build a half diminished seventh (also known as "minor seventh flat
five") chord on note.
Example:
>>> half_diminished_seventh('C')
['C', 'Eb', 'Gb', 'Bb']
"""
return diminished_triad(note) + [intervals.minor_seventh(note)]
def diminished_seventh(note):
"""Build a diminished seventh chord on note.
Example:
>>> diminished_seventh('C')
['C', 'Eb', 'Gb', 'Bbb']
"""
return (diminished_triad(note) +
[notes.diminish(intervals.minor_seventh(note))])
def half_diminished_seventh(note):
"""Build a half diminished seventh (also known as "minor seventh flat
five") chord on note.
Example:
>>> half_diminished_seventh('C')
['C', 'Eb', 'Gb', 'Bb']
"""
return diminished_triad(note) + [intervals.minor_seventh(note)]
def diminished_seventh(note):
"""Build a diminished seventh chord on note.
Example:
>>> diminished_seventh('C')
['C', 'Eb', 'Gb', 'Bbb']
"""
return (diminished_triad(note) +
[notes.diminish(intervals.minor_seventh(note))])
def eleventh(note):
"""Build an eleventh chord on note.
Example:
>>> eleventh('C')
['C', 'G', 'Bb', 'F']
"""
return [note, intervals.perfect_fifth(note), intervals.minor_seventh(note),
intervals.perfect_fourth(note)]
def ascending(self):
notes = [self.tonic]
for i in range(3):
notes.extend([
intervals.minor_second(notes[-1]),
intervals.minor_third(notes[-1])
])
notes.append(intervals.minor_seventh(notes[0]))
notes[-2] = intervals.major_sixth(notes[0])
return notes * self.octaves + [notes[0]]
def test_minor_sevenths(self):
minors = {
"C": "Bb",
"Cb": "Bbb",
"C#": "B",
"E": "D",
"Eb": "Db",
"E#": "D#",
"E####": "D####",
"B": "A",
"Bb": "Ab",
}
for x in minors:
self.assertEqual(
minors[x],
intervals.minor_seventh(x),
"The minor seventh of %s is not %s, expecting %s" %
(x, intervals.minor_seventh(x), minors[x]),
)
def create_interval_dissonant(start_note):
start = start_note
options = [
intervals.minor_second(start),
intervals.major_second(start),
intervals.minor_fifth(start),
intervals.minor_seventh(start),
intervals.major_seventh(start)
]
end = options[(randint(0, len(options) - 1))]
interval = intervals.determine(start, end)
return interval
def ascending(self):
notes = HarmonicMinor(self.tonic).ascending()[:6]
notes.append(intervals.minor_seventh(notes[0]))
notes += HarmonicMinor(self.tonic).ascending()[6:-1]
return notes * self.octaves + [notes[0]]
