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ldrolezldrolez
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Added the missing m7b9b5 chords
All chord progressions are now available in 4 styles
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‎README.md‎

Lines changed: 4 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -7,7 +7,7 @@ with your favorite DAW.
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This collection is FREE and you can contribute to it using the issue tracker above.
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Please use the bug tracker if you find incorrect chords!
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All the files are licensed under the MIT license, and you can use in any project freely.
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All the MIDI files are licensed under the MIT license, and **you can them use in any musical project freely**.
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* More details in [my blog](https://drolez.com/blog/music/free-midi-chords-progressions.php)
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* Quick [Video demo](https://youtu.be/mNBI6uQXltY) with Ableton
@@ -28,9 +28,11 @@ The chords collection is organized using 3 levels of directories:
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* 1/ Triads
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* 2/ 7ths and 9ths chords
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* 3/ All other chords
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* 4/ And progressions
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* 4/ Chord progressions
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* 3rd level: Major and Minor scales
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Below the progressions directory, you'll find 3 more directories. They contain the same MIDI chord progressions files but with different timings: basic4 style, alt4 style and hiphop style.
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## Related
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The script uses chords2midi from Rich Jones, and Python Mingus.

‎gen.py‎

Lines changed: 44 additions & 39 deletions
Original file line numberDiff line numberDiff line change
@@ -64,17 +64,21 @@ def gen(dir, key, chords, prefix):
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#
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# Generate a chord progression
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#
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def genprog(dir, key, chords, prefix):
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if not os.path.exists(dir):
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os.makedirs(dir)
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def genprog(dir, key, chords, prefix, style = ''):
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c2m_obj = c2m.Chords2Midi()
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args = chords.split(" ")
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args.extend(["-t", "5", "-p", "long", "-d", "4", "-B",
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if style != '':
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args.extend(["-p", style])
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dir = dir + "/" + style + " style"
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else:
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args.extend(["-d", "4", "-p", "long"])
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args.extend(["-t", "5", "-B",
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"--key", f"{key}", "-N", f"{prefix} - {chords}", "--output",
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f"{dir}/{prefix} - {chords}.mid"])
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if not os.path.exists(dir):
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os.makedirs(dir)
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c2m_obj.handle(args)
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num = 1
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# Iterate for each key
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for key in keys:
@@ -101,18 +105,17 @@ def genprog(dir, key, chords, prefix):
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# Major 7th
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i = 0
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# bug: pychord cannot create a m7-5add9
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for n in [['M7', 'M9'], ['m7', 'm9'], ['m7', 'm9'],
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['M7', 'M9'], ['7', '9'], ['m7', 'm9'],
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['m7-5']]:
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['m7-5', 'm7b9b5']]:
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for c in n:
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chord = scale_maj[i] + c
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gen(f'{base}/2 7th and 9th/Major', root_maj, chord, deg_maj[i])
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i = i + 1
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# Minor 7th
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i = 0
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for n in [['m7', 'm9'], ['m7-5'], ['M7', 'M9'],
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for n in [['m7', 'm9'], ['m7-5', 'm7b9b5'], ['M7', 'M9'],
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['m7', 'm9'], ['m7', 'm9'],
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['M7', 'M9'], ['7', '9']]:
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for c in n:
@@ -157,39 +160,41 @@ def genprog(dir, key, chords, prefix):
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i = i + 1
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# Major progressions
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for n in [
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"I iii vi IV", "I iii IV vi", "I bIIM I iii", "I bIIM bIIIM bIIM",
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"I bIIIM bVIM bVIIM", "I bIIIM bVIIM IV",
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"I bVIM I bIIM", "I bVIIM bVIM bIIM", "I IV ii V",
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"I IV vi V", "I IV V V", "I IV V bVIIM", "I IV bIIIM bVIM",
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"I IV bVIIM IV", "I V vi ii", "I V vi IV",
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"I V vi iii IV", "I V vi V", "I V bVIIM IV", "I vi IV V",
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"I V vi iii IV I IV V",
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"I bVIIM IV I",
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"ii bIIM I bVIIM", "ii IV V V", "ii V I I", "ii V I IV",
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"ii bVIIM7 I", "ii7 V9 I7 I7", "iim7 V7 iiim7 vi7 iim7 V7",
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"bIIIM ii bIIM I", "iii vi IV I",
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"IV I ii vi", "IV I iii IV", "IV I V vi",
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"V I vi V", "V IV vi I", "V vi IV I",
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"vi IV I V", "vi bVIM bVIIM I", "vi V IV V",
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]:
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genprog(f'{base}/4 Progression/Major', root_maj, n, root_maj)
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for style in [ '', 'basic4', 'alt4', 'hiphop' ]:
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for n in [
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"I iii vi IV", "I iii IV vi", "I bIIM I iii", "I bIIM bIIIM bIIM",
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"I bIIIM bVIM bVIIM", "I bIIIM bVIIM IV",
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"I bVIM I bIIM", "I bVIIM bVIM bIIM", "I IV ii V",
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"I IV vi V", "I IV V V", "I IV V bVIIM", "I IV bIIIM bVIM",
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"I IV bVIIM IV", "I V vi ii", "I V vi IV",
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"I V vi iii IV", "I V vi V", "I V bVIIM IV", "I vi IV V",
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"I V vi iii IV I IV V",
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"I bVIIM IV I",
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"ii bIIM I bVIIM", "ii IV V V", "ii V I I", "ii V I IV",
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"ii bVIIM7 I", "ii7 V9 I7 I7", "iim7 V7 iiim7 vi7 iim7 V7",
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"bIIIM ii bIIM I", "iii vi IV I",
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"IV I ii vi", "IV I iii IV", "IV I V vi",
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"V I vi V", "V IV vi I", "V vi IV I",
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"vi IV I V", "vi bVIM bVIIM I", "vi V IV V",
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]:
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genprog(f'{base}/4 Progression/Major', root_maj, n, root_maj, style)
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# Minor progressions
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for n in [
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"i ii v i", "i iv v iv", "i iv VI v", "i iv VII i",
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"i iv VII v i i ii V", "i v iv VII",
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"i VI III bii", "i VI iv ii", "i VI III VII", "i VI VII VII",
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"i VI VII v", "i VI III VII i VI9 III VII",
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"i bVIIM VI bii", "i VII VI III", "i VII VI VII", "i VII i v",
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"i VII i v III VII i v i", "i bVIIM bVIM bVIIM",
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"ii v i i", "ii v i iv", "ii VI i iv", "ii7 v9 i7",
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"iv i v VI", "iv VI VII i", "iv III VII i", "iv v VI VII",
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"v i iv VII", "v iv i i", "v VI v i", "v VI III i",
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"VI i v v", "VI VI i VII", "VI VII i III", "VI VII v III",
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"VII iv VII i", "VII iv v i",
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]:
192-
genprog(f'{base}/4 Progression/Minor', root_min.lower(), n, root_min)
183+
for style in [ '', 'basic4', 'alt4', 'hiphop' ]:
184+
for n in [
185+
"i ii v i", "i iv v iv", "i iv VI v", "i iv VII i",
186+
"i iv VII v i i ii V", "i v iv VII",
187+
"i VI III bii", "i VI iv ii", "i VI III VII", "i VI VII VII",
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"i VI VII v", "i VI III VII i VI9 III VII",
189+
"i bVIIM VI bii", "i VII VI III", "i VII VI VII", "i VII i v",
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"i VII i v III VII i v i", "i bVIIM bVIM bVIIM",
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"ii v i i", "ii v i iv", "ii VI i iv", "ii7 v9 i7",
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"iv i v VI", "iv VI VII i", "iv III VII i", "iv v VI VII",
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"v i iv VII", "v iv i i", "v VI v i", "v VI III i",
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"VI i v v", "VI VI i VII", "VI VII i III", "VI VII v III",
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"VII iv VII i", "VII iv v i",
196+
]:
197+
genprog(f'{base}/4 Progression/Minor', root_min.lower(), n, root_min, style)
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# next key
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num = num + 1

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