======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '30'
                                          'artist'  'Gomez'
                                     'text_people'  ''
                                         'release'  'Abandoned Shopping Trolley Hotline'
                                           'title'  'Shitbag 9'
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                                      'lastfmtags'  "['indie', 'alternative', 'british', 'indie rock', 'rock']"
                                     'discogstags'  "['rock', 'blues rock', 'indie rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '15'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '143.416'
                                             'key'  '1A'
                                        'acoustid'  '1fc57492-50ea-4894-9d9b-d51efa2fda1d'
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000057A 00000EF9 00002B9A'
'COMM:iTunNORM:eng'                                 (' 0000057A 00000EF9 00002B9A 0000302A 00000E97 000001D6 0000658B 000055D7 '
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'COMM:iTunes_CDDB_IDs:eng'                          '15+04D7CBDBACE5ACBEBD7BBA63FE0D27F6+942867'
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'TBPM' (BPM (beats per minute))                     '143.416'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDOR' (Original release time)                      '2000'
'TDRC' (Recording time)                             '2000-09-25'
'TENC' (Encoded by)                                 'iTunes v4.5.0.31'
'TIT2' (Title/songname/content description)         'Shitbag 9'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Gomez'
'TPE2' (Band/orchestra/accompaniment)               'Gomez'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Hut Recordings'
'TRCK' (Track number/Position in set)               '1/15'
'TSO2'                                              'Gomez'
'TSOP' (Performer sort order)                       'Gomez'
'TSRC' (ISRC (international standard recording code))  'GBAAA0000746'
'TXXX:ASIN'                                         'B00004Y33Q'
'TXXX:Acoustid Id'                                  '1fc57492-50ea-4894-9d9b-d51efa2fda1d'
'TXXX:BARCODE'                                      '724385017520'
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'TXXX:MusicBrainz Album Id'                         '6063349a-c92e-3523-ad56-affce7aaf662'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '304cdd9d-a04e-4eb2-865c-980a553a0efd'
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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'                                  ['rock', 'blues rock', 'indie rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'british', 'indie rock', 'rock']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.17 dB'
'TXXX:replaygain_track_peak'                        '0.466120'
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========================== row from database ==========================
                                              'id'  1368859
                                            'path'  /data/Music/Bulk/00poprockelectronic-poprock-indierock/Gomez - Abandoned Shopping Trolley Hotline (Disc/1-01 Shitbag 9.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  30
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  607823
                                           'mtime'  1621697228
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic poprock indierock (Disc 1 01 ifs songwriter indie rock
                                      'tag_artist'  Gomez
                                     'tag_release'  Abandoned Shopping Trolley Hotline
                                       'tag_title'  Shitbag 9
                                             'bpm'  143.416
                                    'search_title'  '9':2 'shitbag':1
                                   'search_artist'  'gomez':1
                                  'search_release'  'abandoned':1 'hotline':4 'shopping':2 'trolley':3
                                     'search_rest'  '00poprockelectronic':1 '1':6 'disc':4,5 'ifs':7 'indie':9 'indierock':3 'poprock':2 'rock':10 'songwriter':8
                                    'search_combo'  '00poprockelectronic':8 '1':13 '9':2A 'abandoned':4C 'disc':11,12 'gomez':3B 'hotline':7C 'ifs':14 'indie':16 'indierock':10 'poprock':9 'rock':17 'shitbag':1A 'shopping':5C 'songwriter':15 'trolley':6C
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'british', 'indie rock', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock', 'blues rock', 'indie rock']

============================== file details ==============================
                                           'mtime'  1621697227.8455815  (2021-05-22 17:27:07)
                             'size'  607823