def ascending(self):
notes = [self.tonic]
notes.append(intervals.major_second(notes[0]))
notes.append(intervals.major_third(notes[0]))
notes.append(intervals.perfect_fifth(notes[0]))
notes.append(intervals.major_sixth(notes[0]))
return notes * self.octaves + [notes[0]]
def ascending(self):
notes = [self.tonic]
for i in range(3):
notes.extend([intervals.major_second(notes[-1]), intervals.minor_third(notes[-1])])
notes.append(intervals.major_seventh(notes[0]))
notes[-2] = intervals.major_sixth(notes[0])
return notes * self.octaves + [notes[0]]
def dominant_ninth(note):
"""Build a dominant ninth chord on note.
Example:
>>> dominant_ninth('C')
['C', 'E', 'G', 'Bb', 'D']
"""
return dominant_seventh(note) + [intervals.major_second(note)]
def major_ninth(note):
"""Build a major ninth chord on note.
Example:
>>> major_ninth('C')
['C', 'E', 'G', 'B', 'D']
"""
return major_seventh(note) + [intervals.major_second(note)]
def sixth_ninth(note):
"""Build the sixth/ninth chord on note.
Example:
>>> sixth_ninth('C')
['C', 'E', 'G', 'A', 'D']
"""
return major_sixth(note) + [intervals.major_second(note)]
def major_ninth(note):
"""Build a major ninth chord on note.
Example:
>>> major_ninth('C')
['C', 'E', 'G', 'B', 'D']
"""
return major_seventh(note) + [intervals.major_second(note)]
def suspended_second_triad(note):
"""Build a suspended second triad on note.
Example:
>>> suspended_second_triad('C')
['C', 'D', 'G']
"""
return [note, intervals.major_second(note), intervals.perfect_fifth(note)]
def ascending(self):
notes = [self.tonic]
for n in range(1, 7):
if n in self.semitones:
notes.append(intervals.minor_second(notes[-1]))
else:
notes.append(intervals.major_second(notes[-1]))
return notes * self.octaves + [notes[0]]
def ascending(self):
notes = [self.tonic]
for n in range(1, 7):
if n in self.semitones:
notes.append(intervals.minor_second(notes[-1]))
else:
notes.append(intervals.major_second(notes[-1]))
return notes * self.octaves + [notes[0]]
def suspended_second_triad(note):
"""Build a suspended second triad on note.
Example:
>>> suspended_second_triad('C')
['C', 'D', 'G']
"""
return [note, intervals.major_second(note), intervals.perfect_fifth(note)]
def dominant_ninth(note):
"""Build a dominant ninth chord on note.
Example:
>>> dominant_ninth('C')
['C', 'E', 'G', 'Bb', 'D']
"""
return dominant_seventh(note) + [intervals.major_second(note)]
def sixth_ninth(note):
"""Build the sixth/ninth chord on note.
Example:
>>> sixth_ninth('C')
['C', 'E', 'G', 'A', 'D']
"""
return major_sixth(note) + [intervals.major_second(note)]
def ascending(self):
notes = [self.tonic]
for i in range(3):
notes.extend(
[intervals.major_second(notes[-1]),
intervals.minor_third(notes[-1])])
notes.append(intervals.major_seventh(notes[0]))
notes[-2] = intervals.major_sixth(notes[0])
return notes * self.octaves + [notes[0]]
def dominant_sharp_ninth(note):
"""Build a dominant sharp ninth chord on note.
Example:
>>> dominant_ninth('C')
['C', 'E', 'G', 'Bb', 'D#']
"""
res = dominant_ninth(note)
res[4] = notes.augment(intervals.major_second(note))
return res
def dominant_sharp_ninth(note):
"""Build a dominant sharp ninth chord on note.
Example:
>>> dominant_ninth('C')
['C', 'E', 'G', 'Bb', 'D#']
"""
res = dominant_ninth(note)
res[4] = notes.augment(intervals.major_second(note))
return res
def test_major_seconds(self):
majors = {
"C" : "D",
"C#" : "D#",
"Cb" : "Db",
"D" : "E",
"Db" : "Eb",
"Eb" : "F",
"E" : "F#",
"E#" : "F##",
"A" : "B",
"Ab" : "Bb",
"A#" : "B#",
"Bb" : "C",
"B" : "C#",
"B#" : "C##",
}
for x in majors.keys():
self.assertEqual(majors[x], intervals.major_second(x),\
"The major second of %s is not %s, expecting %s" % (x, intervals.major_second(x), majors[x]))
def test_major_seconds(self):
majors = {
'C': 'D',
'C#': 'D#',
'Cb': 'Db',
'D': 'E',
'Db': 'Eb',
'Eb': 'F',
'E': 'F#',
'E#': 'F##',
'A': 'B',
'Ab': 'Bb',
'A#': 'B#',
'Bb': 'C',
'B': 'C#',
'B#': 'C##',
}
for x in list(majors.keys()):
self.assertEqual(majors[x], intervals.major_second(x),
'The major second of %s is not %s, expecting %s'
% (x, intervals.major_second(x), majors[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 test_major_seconds(self):
majors = {
'C': 'D',
'C#': 'D#',
'Cb': 'Db',
'D': 'E',
'Db': 'Eb',
'Eb': 'F',
'E': 'F#',
'E#': 'F##',
'A': 'B',
'Ab': 'Bb',
'A#': 'B#',
'Bb': 'C',
'B': 'C#',
'B#': 'C##',
}
for x in list(majors.keys()):
self.assertEqual(majors[x], intervals.major_second(x),
'The major second of %s is not %s, expecting %s'
% (x, intervals.major_second(x), majors[x]))
def test_major_seconds(self):
majors = {
"C": "D",
"C#": "D#",
"Cb": "Db",
"D": "E",
"Db": "Eb",
"Eb": "F",
"E": "F#",
"E#": "F##",
"A": "B",
"Ab": "Bb",
"A#": "B#",
"Bb": "C",
"B": "C#",
"B#": "C##",
}
for x in majors:
self.assertEqual(
majors[x],
intervals.major_second(x),
"The major second of %s is not %s, expecting %s" %
(x, intervals.major_second(x), majors[x]),
)
def ascending(self):
notes = [self.tonic]
for note in range(5):
notes.append(intervals.major_second(notes[-1]))
return notes * self.octaves + [notes[0]]
def ascending(self):
notes = [self.tonic]
for note in range(5):
notes.append(intervals.major_second(notes[-1]))
return notes * self.octaves + [notes[0]]
