4 ms·

The crucial step is extracting the (best) harmony progression from each midi. Look at Chordino [1] with the vamp Python wrapper [2] [1] https://code.soundsoft

The crucial step is extracting the (best) harmony progression from each midi. Look at Chordino [1] with the vamp Python wrapper [2] [1] https://code.soundsoftware.ac.uk/projects/nnls-chroma https://code.soundsoftware.ac.uk/projects/nnls-chroma [2] https://pypi.org/project/vamp/ https://pypi.org/project/vamp/

stevehiehn 4y ago
nice, both of these are very cool, thanks. digging in now.
- LunarAurora 4y ago
  FYI MetaMIDI Dataset is the best (I found). you can request access here https://zenodo.org/record/5142664 https://zenodo.org/record/5142664 if you haven’t already. Lakh MIDI Dataset https://colinraffel.com/projects/lmd https://colinraffel.com/projects/lmd is smaller but directly downloadable
  - stevehiehn 4y ago
    I haven't but I will, really useful stuff, thanks
stevehiehn 4y ago
yo, correction vamp is more than cool. I was imagining already knowing what the progression is and then searching for matching midi clips. Vamp alludes to the possibility of auto feature extracting the progression and then searching for possible matches!!
- sargstuff 4y ago
  misc mix of other things (theory & practice): https://www.cnmat.berkeley.edu/sites/default/files/attachments/2016_Learning_and_Visualizing_Music_Specifications_Using_Pattern_Graphs.pdf https://www.cnmat.berkeley.edu/sites/default/files/attachmen... https://openaccess.city.ac.uk/id/eprint/1306/1/Wissmann%2C_Jens.pdf https://openaccess.city.ac.uk/id/eprint/1306/1/Wissmann%2C_J... https://extemporelang.github.io/docs/guides/pattern-language/ https://extemporelang.github.io/docs/guides/pattern-language... https://github.com/topics/chord-progression https://github.com/topics/chord-progression
  - stevehiehn 4y ago
    Lets say the query is: "Key of C, 4/4, [Am7,Am7,Em7,Dm7] My first naive approach will be to try this: 1) ensure the tune time sig is a match 2) for each bar collect the pitches and ensure that they contain the chord(or any inversion) of the chord at the index in question. 3) any non-chord/passing tones must exist in the overarching key or its not a match. If all 4 bars are a match I will reconstruct a midi clip and return it as a result.

stevehiehn 4y ago

nice, both of these are very cool, thanks. digging in now.

LunarAurora 4y ago
FYI MetaMIDI Dataset is the best (I found). you can request access here https://zenodo.org/record/5142664 https://zenodo.org/record/5142664 if you haven’t already. Lakh MIDI Dataset https://colinraffel.com/projects/lmd https://colinraffel.com/projects/lmd is smaller but directly downloadable
- stevehiehn 4y ago
  I haven't but I will, really useful stuff, thanks

stevehiehn 4y ago

yo, correction vamp is more than cool. I was imagining already knowing what the progression is and then searching for matching midi clips. Vamp alludes to the possibility of auto feature extracting the progression and then searching for possible matches!!

sargstuff 4y ago
misc mix of other things (theory & practice): https://www.cnmat.berkeley.edu/sites/default/files/attachments/2016_Learning_and_Visualizing_Music_Specifications_Using_Pattern_Graphs.pdf https://www.cnmat.berkeley.edu/sites/default/files/attachmen... https://openaccess.city.ac.uk/id/eprint/1306/1/Wissmann%2C_Jens.pdf https://openaccess.city.ac.uk/id/eprint/1306/1/Wissmann%2C_J... https://extemporelang.github.io/docs/guides/pattern-language/ https://extemporelang.github.io/docs/guides/pattern-language... https://github.com/topics/chord-progression https://github.com/topics/chord-progression
- stevehiehn 4y ago
  Lets say the query is: "Key of C, 4/4, [Am7,Am7,Em7,Dm7] My first naive approach will be to try this: 1) ensure the tune time sig is a match 2) for each bar collect the pitches and ensure that they contain the chord(or any inversion) of the chord at the index in question. 3) any non-chord/passing tones must exist in the overarching key or its not a match. If all 4 bars are a match I will reconstruct a midi clip and return it as a result.