======================== unified (from filesystem) ========================
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                                        'duration'  '210'
                                          'artist'  'Beth Orton'
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                                           'title'  'Feral Children'
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                                      'lastfmtags'  "['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '14'
                                            'date'  '2006'
                                        'comments'  ''
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                                             'bpm'  '98'
                                             'key'  '4B'
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rest: ''

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

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'TBPM' (BPM (beats per minute))                     '98'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter'
'TDOR' (Original release time)                      '2006'
'TDRC' (Recording time)                             '2006-02-07'
'TIT2' (Title/songname/content description)         'Feral Children'
'TKEY' (Initial key)                                '4B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Beth Orton'
'TPE2' (Band/orchestra/accompaniment)               'Beth Orton'
'TPOS' (Part of a set)                              '1/2'
'TPUB' (Publisher)                                  'Astralwerks'
'TRCK' (Track number/Position in set)               '12/14'
'TSO2'                                              'Orton, Beth'
'TSOP' (Performer sort order)                       'Orton, Beth'
'TSRC' (ISRC (international standard recording code))  'GBAYE0501764'
'TXXX:Acoustid Id'                                  'ba34b778-398c-4db8-a0f8-1806c9a7e7d2'
'TXXX:Artists'                                      'Beth Orton'
'TXXX:BARCODE'                                      '094635234527'
'TXXX:CATALOGNUMBER'                                'ASW 52345'
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'TXXX:MusicBrainz Album Id'                         '63494ce2-9da3-4d50-a248-9e03b3589e1a'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '214d84a5-e9e5-4432-af95-8c84da7ba4c0'
'TXXX:MusicBrainz Release Group Id'                 '0d8b16da-3f72-3ea0-9abe-b0af5df221cb'
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'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']
'TXXX:originalyear'                                 '2006'
'TXXX:q-bass'                                       '1'
'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-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.35 dB'
'TXXX:replaygain_track_peak'                        '0.588320'
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========================== row from database ==========================
                                              'id'  1370098
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/Beth Orton - Comfort of Strangers/Beth Orton - Comfort of strangers - 09 Feral Children.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  210
                                           'genre'  ifs-songwriter
                                        'filesize'  5049211
                                           'mtime'  1636401771
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos strangers 09 ifs songwriter
                                      'tag_artist'  Beth Orton
                                     'tag_release'  Comfort of Strangers
                                       'tag_title'  Feral Children
                                             'bpm'  98.0
                                    'search_title'  'children':2 'feral':1
                                   'search_artist'  'beth':1 'orton':2
                                  'search_release'  'comfort':1 'of':2 'strangers':3
                                     'search_rest'  '00singer':1 'eos':3 'ifs':5 'songwriter':2 'strangers':4
                                    'search_combo'  '00singer':8 'beth':3B 'children':2A 'comfort':5C 'eos':10 'feral':1A 'ifs':12 'of':6C 'orton':4B 'songwriter':9 'strangers':7C,11
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'Q-PIANO-2', 'q-mixbeat-1', '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-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'female vocalists', 'folk', 'singer songwriter']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636401771.0485895  (2021-11-08 21:02:51)
                             'size'  5049211