======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '330'
                                          'artist'  'Bill Callahan'
                                     'text_people'  'Bill Callahan'
                                         'release'  'Apocalypse'
                                           'title'  "Baby's Breath"
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', "
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 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
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                                      'lastfmtags'  "['lo fi', 'alt country', 'indie rock', 'folk', 'singer songwriter']"
                                     'discogstags'  "['folk, world, & country', 'folk rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '7'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter'
                                             'bpm'  '111.394'
                                             'key'  '4A'
                                        'acoustid'  '344ec91e-8a8a-486a-b7bd-fe7c284d37e4'
rest: ''

======================== rawer (from filesystem) ========================

'COMM:ID3v1 Comment:XXX'                            'www.NewAlbumReleases.net'
'COMM:iTunNORM:eng'                                 (' 000002BC 000002AD 0000268A 00003299 0004B3AC 00037A82 00007F0A 0000838D '
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'COMM:iTunPGAP:eng'                                 '0/'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000081C 0000000000DE6DD4 00000000 00C9A87E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '59097A07+182158+7+150+24508+49299+74286+100776+128212+142706'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '2'
'TALB' (Album/Movie/Show title)                     'Apocalypse'
'TBPM' (BPM (beats per minute))                     '111.394'
'TCOM' (Composer)                                   'Bill Callahan'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '2011'
'TDRC' (Recording time)                             '2011-04-05'
'TENC' (Encoded by)                                 'iTunes 10.2.1'
'TEXT' (Lyricist/Text writer)                       'Bill Callahan'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['producer', 'Bill Callahan'], ['mix', 'Brian Beattie'], ['bass', 'Brian Beattie'], ['drums (drum set)', 'Neal Morgan'], ['snare drum', 'Bill Callahan'], ['flute', 'Franco Franco'], ['vocal', 'Bill Callahan'], ['membranophone', 'Neal Morgan'], ['classical guitar', 'Bill Callahan'], ['piano', 'Jonathan Meiburg'], ['wurlitzer electric piano', 'Jonathan Meiburg'], ['electric guitar', 'Matt Kinsey'], ['electric guitar', 'Bill Callahan'], ['fiddle', 'Gordon Butler']])
'TIT2' (Title/songname/content description)         "Baby's Breath"
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Callahan'
'TPE2' (Band/orchestra/accompaniment)               'Bill Callahan'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Drag City'
'TRCK' (Track number/Position in set)               '2/7'
'TSO2'                                              'Callahan, Bill'
'TSOA' (Album sort order)                           '2011'
'TSOP' (Performer sort order)                       'Callahan, Bill'
'TXXX:ASIN'                                         'B004QL24GC'
'TXXX:Acoustid Id'                                  '344ec91e-8a8a-486a-b7bd-fe7c284d37e4'
'TXXX:BARCODE'                                      '781484045021'
'TXXX:CATALOGNUMBER'                                'DC450CD'
'TXXX:MusicBrainz Album Artist Id'                  'c309d914-93af-4b3f-8058-d79c75ea89da'
'TXXX:MusicBrainz Album Id'                         'cfeefd88-295a-40b5-8d98-f1c120baffa8'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'c309d914-93af-4b3f-8058-d79c75ea89da'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['folk, world, & country', 'folk rock', 'indie rock']
'TXXX:lastfmtags'                                   ['lo fi', 'alt country', 'indie rock', 'folk', 'singer songwriter']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.06 dB'
'TXXX:replaygain_track_peak'                        '0.727358'
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========================== row from database ==========================
                                              'id'  1516540
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Bill Callahan - Apocalypse/02 Baby_s Breath.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  330
                                           'genre'  ifs-songwriter
                                        'filesize'  13229055
                                           'mtime'  1637330780
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 02 Baby_s ifs songwriter
                                      'tag_artist'  Bill Callahan
                                     'tag_release'  Apocalypse
                                       'tag_title'  Baby's Breath
                                             'bpm'  111.394
                                    'search_title'  'baby':1 'babys':3 'breath':4 's':2
                                   'search_artist'  'bill':1 'callahan':2
                                  'search_release'  'apocalypse':1
                                     'search_rest'  '00singer':1 'baby':4 'eos':3 'ifs':6 's':5 'songwriter':2
                                    'search_combo'  '00singer':8 'apocalypse':7C 'baby':1A,11 'babys':3A 'bill':5B 'breath':4A 'callahan':6B 'eos':10 'ifs':13 's':2A,12 'songwriter':9
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['lo fi', 'alt country', 'indie rock', 'folk', 'singer songwriter']
                                        'tag_date'  2011
                                     'discogstags'  ['folk, world, & country', 'folk rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1637330780.3848603  (2021-11-19 15:06:20)
                             'size'  13229055