min(*3) chords - ambiguous minor or major third
In some of the chord annotations, for example, chords/m04-uraomote_docchi.txt, there is min(*3) chords. Since (*3) is treated as major third instead of minor third, this will be decoded, for example, by mir_eval, the same as minor, because major third does not exist and removing it makes no difference. I suppose the annotation is actually min(*b3), am I correct?
I think you are correct. I am now investigating omit3 chords, and I think contradictive chords are 3 chords in m04-uraomote_docchi.txt. We will select min(*b3) or maj(*3) and fix annotations.
omit3 chords:
$ grep -Er '.\*b?3' . | sort
./f03-awake.txt:237.97 238.489 Bb:maj(*3)
./f03-awake.txt:240.708 241.273 Bb:maj(*3)
./f03-awake.txt:243.409 244.111 Bb:maj(*3)
./f03-awake.txt:246.162 246.766 Bb:maj(*3)
./f03-awake.txt:246.766 247.351 Db:maj(*3)
./f03-awake.txt:247.351 248.233 Bb:maj(*3)
./f05-kaerimichi.txt:187.969 189.275 Db:maj(*3)
./f05-kaerimichi.txt:89.291 90.604 Db:7(*3)
./f06-ima_sekaiwa_kagayaiteru.txt:78.144 79.993 Bb:maj(*3)
./f07-illuminyati.txt:11.627 11.808 Db:maj(*3)
./f07-illuminyati.txt:11.808 11.973 D:maj(*3)
./f07-illuminyati.txt:5.608 5.805 Db:maj(*3)
./f07-illuminyati.txt:5.805 5.984 D:maj(*3)
./m02-trick_star.txt:263.262 268.969 C:maj9(*3)
./m03-answer.txt:154.367 156.943 Eb:min9(11,*b3,*5)
./m04-uraomote_docchi.txt:1.56 2.315 F:maj(*3)
./m04-uraomote_docchi.txt:2.315 3.087 E:maj(*3)
./m04-uraomote_docchi.txt:3.087 3.373 D#:min(*3)
./m04-uraomote_docchi.txt:3.373 3.661 D:min(*3)
./m04-uraomote_docchi.txt:3.661 4.621 C#:min(*3)
./m06-soredemo_sukidayo.txt:27.66 29.242 E:maj9(*3,*7)
./m06-soredemo_sukidayo.txt:35.322 36.897 Gb:7(*3)
./m07-suki_no_aizu.txt:203.452 204.299 Eb:maj9(*3)
We have investigated and discussed this issue, especially the choice between min(*b3) and maj(*3). In conclusion, we fix the 3 inconsistent chords min(*3) by replacing them with min(*b3) in Uraomote Docchi. Thank you for your advice!
https://huggingface.co/datasets/imprt/idol-songs-jp/commit/01a2e98fde01df95a7287a0f6819e700f1d1dc42