Thanks for the detailed investigation! Compatibility with Picard is generally a useful goal.
As you continue to explore, would you mind filing individual bugs on the issue tracker about pieces of missing metadata and alternative spellings? In particular, when we decide how to format metadata keys for each field, we’ll need to track down documentation for how to maximize compatibility with other tools, so it needs some case-by-case discussion. And for that kind of discussion, separate GitHub threads are the best way to get feedback and organize the documentation we have. On a couple of specific cases: - We don’t yet fetch the composer field: https://github.com/beetbox/beets/issues/506 <https://github.com/beetbox/beets/issues/506> - ORIGINALDATE vs. ORIGINALYEAR was discussed on the mailing list recently: https://groups.google.com/d/msg/beets-users/hOZ6z8hRwKM/f1IJ3yPAAgAJ <https://groups.google.com/d/msg/beets-users/hOZ6z8hRwKM/f1IJ3yPAAgAJ> We didn’t reach a solid conclusion about which was standard, or even which Picard preferred—so thanks for investigating! Perhaps we should be writing the ORIGINALYEAR field in addition. Adrian > On Jul 31, 2016, at 8:47 AM, Stefano Bossi <[email protected]> wrote: > > Dear beets developer, > > I have started using beets since a couple of week and I have decided to move > my metadata work from Picard to Beets. > > I have controlled the differences between the metadata written by picard and > beets, here are my considerations. For my research I have used this table map > directly from musicbrainz site: > /https://picard.musicbrainz.org/docs/mappings/ > <https://picard.musicbrainz.org/docs/mappings/> and the official flac > metadata inspection tool "metaflac" > > The track I used for the comparison is: > http://musicbrainz.org/release/43dd0b85-0f22-3fa4-80d8-e49c7310af83 > <http://musicbrainz.org/release/43dd0b85-0f22-3fa4-80d8-e49c7310af83> > > First of all I cleaned all the metadata with metaflac: > > > metaflac --remove --block-type=VORBIS_COMMENT ./01\ -\ Koö\,\ January\ 24\,\ > 1975\,\ Part\ I\ \(1\).flac > > > After the clean up here and a new metadatation, here are the two results: > > > > With Beets: > > > > metaflac --list --block-type=VORBIS_COMMENT ./01\ -\ Köln\,\ January\ 24\,\ > 1975\,\ Part\ I.flac > METADATA block #2 > type: 4 (VORBIS_COMMENT) > is last: false > length: 1232 > vendor string: Mutagen 1.32 > comments: 51 > comment[0]: ACOUSTID_FINGERPRINT= > comment[1]: ACOUSTID_ID= > comment[2]: ALBUM=The Köln Concert > comment[3]: ALBUM ARTIST=Keith Jarrett > comment[4]: ALBUMARTIST=Keith Jarrett > comment[5]: ALBUMARTIST_CREDIT=Keith Jarrett > comment[6]: ALBUMARTISTSORT=Jarrett, Keith > comment[7]: MUSICBRAINZ_ALBUMCOMMENT= > comment[8]: MUSICBRAINZ_ALBUMSTATUS=Official > comment[9]: MUSICBRAINZ_ALBUMTYPE=live > comment[10]: ARTIST=Keith Jarrett > comment[11]: ARTIST_CREDIT=Keith Jarrett > comment[12]: ARTISTSORT=Jarrett, Keith > comment[13]: ASIN=B0000262WI > comment[14]: BPM=0 > comment[15]: CATALOGNUMBER=ECM 1064 /65 > comment[16]: DESCRIPTION= > comment[17]: COMMENT= > comment[18]: COMPILATION=0 > comment[19]: COMPOSER= > comment[20]: RELEASECOUNTRY=DE > comment[21]: DATE=1983 > comment[22]: YEAR=1983 > comment[23]: DISC=1 > comment[24]: DISCNUMBER=1 > comment[25]: DISCSUBTITLE= > comment[26]: DISCTOTAL=1 > comment[27]: DISCC=1 > comment[28]: TOTALDISCS=1 > comment[29]: ENCODEDBY= > comment[30]: ENCODER= > comment[31]: GENRE= > comment[32]: GROUPING= > comment[33]: LABEL=ECM > comment[34]: PUBLISHER=ECM > comment[35]: LANGUAGE=eng > comment[36]: LYRICS= > comment[37]: > MUSICBRAINZ_ALBUMARTISTID=061c4920-3ea6-4835-98f6-02f3b82f5e3a > comment[38]: MUSICBRAINZ_ALBUMID=43dd0b85-0f22-3fa4-80d8-e49c7310af83 > comment[39]: MUSICBRAINZ_ARTISTID=061c4920-3ea6-4835-98f6-02f3b82f5e3a > comment[40]: > MUSICBRAINZ_RELEASEGROUPID=516d4629-7bf3-3ac3-907a-ed9a022db840 > comment[41]: MUSICBRAINZ_TRACKID=efa85037-66ba-4910-ab97-86124ea515f3 > comment[42]: MEDIA=CD > comment[43]: ORIGINALDATE=1975-11-30 > comment[44]: SCRIPT=Latn > comment[45]: TITLE=Köln, January 24, 1975, Part I > comment[46]: TRACK=1 > comment[47]: TRACKNUMBER=1 > comment[48]: TRACKTOTAL=4 > comment[49]: TRACKC=4 > comment[50]: TOTALTRACKS=4 > > > With Picard: > > metaflac --list --block-type=VORBIS_COMMENT ./01\ -\ Köln\,\ January\ 24\,\ > 1975\,\ Part\ I\ \(1\).flac > METADATA block #2 > type: 4 (VORBIS_COMMENT) > is last: false > length: 1101 > vendor string: Mutagen 1.27 > comments: 37 > comment[0]: BARCODE=042281006722 > comment[1]: PRODUCER=Manfred Eicher > comment[2]: TITLE=Köln, January 24, 1975, Part I > comment[3]: RELEASECOUNTRY=DE > comment[4]: TOTALDISCS=1 > comment[5]: LABEL=ECM > comment[6]: TOTALTRACKS=4 > comment[7]: COMPOSERSORT=Jarrett, Keith > comment[8]: MUSICBRAINZ_ALBUMARTISTID=061c4920-3ea6-4835-98f6-02f3b82f5e3a > comment[9]: COMPOSER=Keith Jarrett > comment[10]: DATE=1983 > comment[11]: DISCNUMBER=1 > comment[12]: TRACKTOTAL=4 > comment[13]: > MUSICBRAINZ_RELEASETRACKID=d4755323-4a9c-3edd-8794-dc846e7ad868 > comment[14]: ASIN=B0000262WI > comment[15]: ALBUMARTISTSORT=Jarrett, Keith > comment[16]: ORIGINALDATE=1975-11-30 > comment[17]: SCRIPT=Latn > comment[18]: MUSICBRAINZ_ALBUMID=43dd0b85-0f22-3fa4-80d8-e49c7310af83 > comment[19]: RELEASESTATUS=official > comment[20]: ALBUMARTIST=Keith Jarrett > comment[21]: CATALOGNUMBER=ECM 1064 /65 > comment[22]: ENGINEER=Martin Wieland > comment[23]: ALBUM=The Köln Concert > comment[24]: MUSICBRAINZ_ARTISTID=061c4920-3ea6-4835-98f6-02f3b82f5e3a > comment[25]: MEDIA=CD > comment[26]: RELEASETYPE=album > comment[27]: RELEASETYPE=live > comment[28]: ORIGINALYEAR=1975 > comment[29]: ISRC=DEA097500010 > comment[30]: DISCTOTAL=1 > comment[31]: ARTIST=Keith Jarrett > comment[32]: > MUSICBRAINZ_RELEASEGROUPID=516d4629-7bf3-3ac3-907a-ed9a022db840 > comment[33]: MUSICBRAINZ_TRACKID=efa85037-66ba-4910-ab97-86124ea515f3 > comment[34]: ARTISTSORT=Jarrett, Keith > comment[35]: ARTISTS=Keith Jarrett > comment[36]: TRACKNUMBER=1 > > > I have then checked the differences and here are the result: > > Unique field present in Beets: > > comment[0]: ACOUSTID_FINGERPRINT= > comment[1]: ACOUSTID_ID= > comment[4]: ALBUMARTIST=Keith Jarrett > comment[5]: ALBUMARTIST_CREDIT=Keith Jarrett > comment[7]: MUSICBRAINZ_ALBUMCOMMENT= > comment[8]: MUSICBRAINZ_ALBUMSTATUS=Official > comment[9]: MUSICBRAINZ_ALBUMTYPE=live > comment[11]: ARTIST_CREDIT=Keith Jarrett > comment[14]: BPM=0 > comment[16]: DESCRIPTION= > comment[17]: COMMENT= > comment[18]: COMPILATION=0 > comment[19]: COMPOSER= > comment[22]: YEAR=1983 > comment[23]: DISC=1 > comment[25]: DISCSUBTITLE= > comment[27]: DISCC=1 > comment[29]: ENCODEDBY= > comment[30]: ENCODER= > comment[31]: GENRE= > comment[32]: GROUPING= > comment[34]: PUBLISHER=ECM > comment[35]: LANGUAGE=eng > comment[36]: LYRICS= > comment[46]: TRACK=1 > comment[49]: TRACKC=4 > > > Unique fields present in Picard: > comment[0]: BARCODE=042281006722 > comment[1]: PRODUCER=Manfred Eicher > comment[7]: COMPOSERSORT=Jarrett, Keith > comment[9]: COMPOSER=Keith Jarrett > comment[13]: > MUSICBRAINZ_RELEASETRACKID=d4755323-4a9c-3edd-8794-dc846e7ad868 > comment[19]: RELEASESTATUS=official > comment[22]: ENGINEER=Martin Wieland > comment[26]: RELEASETYPE=album > comment[27]: RELEASETYPE=live > comment[28]: ORIGINALYEAR=1975 > comment[29]: ISRC=DEA097500010 > comment[35]: ARTISTS=Keith Jarrett > > Some considerations: > There are more fields in beets than in Picard this is very good! I think that > using all the Musicbrainz field is the goal here. > Some fields in Picard are not used in beets: BARCODE, PRODUCER, > MUSICBRAINZ_RELEASETRACKID, ENGINEER, ISRC > RELEASESTATUS is the vorbis jargon of MUSICBRAINZ_ALBUMSTATUS which is APEv2. > Here I think beets could use the correct Vorbis Jargon not the APE one. > COMPOSER and COMPOSERSORT are present in Picard left empty in Beets. This is > strange... Maybe a bug ???? > RELEASETYPE is vorbis jargon (Picard), MUSICBRAINZ_ALBUMTYPE is APE2 jargon. > Beets maybe could use Vorbis instead of APE. > Picard use two RELEASETYPE (Album + Live) Beets just one; actually dropping > "Album". I don't which could be the correct one, maybe using both as > indicated in MusicBrainz? > ORIGINALYEAR is dropped in beets. There's a more complete ORIGINALDATE. And > you can use $original_year in your path composition. Anyway could be worth to > keep both for legacy software compatibility? > ARTISTS (plural) this is a strange Picard only field. Maybe is a list of > artists if the release is a collection? I don't know. > > What do you think about the analysis ? I really hope that this comparison of > mine will be useful to you for letting beets be the best tagging tool on the > web! > > Regards, > Stefano Bossi > > > -- > You received this message because you are subscribed to the Google Groups > "beets" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected] > <mailto:[email protected]>. > For more options, visit https://groups.google.com/d/optout > <https://groups.google.com/d/optout>. -- You received this message because you are subscribed to the Google Groups "beets" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
