======================== unified (from filesystem) ========================
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                                        'duration'  '286'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
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                                     'tracknumber'  '8'
                                      'tracktotal'  '12'
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'electronic-we-electropop or synthpop'
                                             'bpm'  '144.3'
                                             'key'  '5A'
                                        'acoustid'  'e5da3283-1643-4c64-a7ca-3572c1640d90'
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Tears Roll Down: Greatest Hits 82-92'
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'TCON' (Content type, a.k.a. Genre)                 'electronic-we-electropop or synthpop'
'TDOR' (Original release time)                      '1992'
'TDRC' (Recording time)                             '1992'
'TIT2' (Title/songname/content description)         'I Believe'
'TKEY' (Initial key)                                '5A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Tears for Fears'
'TPE2' (Band/orchestra/accompaniment)               'Tears for Fears'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Fontana'
'TRCK' (Track number/Position in set)               '8/12'
'TSO2'                                              'Tears for Fears'
'TSOP' (Performer sort order)                       'Tears for Fears'
'TSRC' (ISRC (international standard recording code))  'GBF088590111'
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'TXXX:Acoustid Id'                                  'e5da3283-1643-4c64-a7ca-3572c1640d90'
'TXXX:Artists'                                      'Tears for Fears'
'TXXX:BARCODE'                                      '731451093920'
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'TXXX:MusicBrainz Album Id'                         '5937da39-4c6a-3f3b-9f96-bc54ebbd23ed'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '7c7f9c94-dee8-4903-892b-6cf44652e2de'
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'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'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'                                   ['80s', 'new wave', 'synth pop', 'pop', 'rock']
'TXXX:originalyear'                                 '1992'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.816758'
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========================== row from database ==========================
                                              'id'  1331110
                                            'path'  /data/Music/Bulk/00poprockelectronic/00electro-electropop-synthpop/Tears For Fears/Tears Roll Down/Tears For Fears - I Believe.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  286
                                           'genre'  electronic-we-electropop or synthpop
                                        'filesize'  4708655
                                           'mtime'  1628353819
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00electro electropop synthpop For For electronic we electropop synthpop
                                      'tag_artist'  Tears for Fears
                                     'tag_release'  Tears Roll Down: Greatest Hits 82-92
                                       'tag_title'  I Believe
                                             'bpm'  144.3
                                    'search_title'  'believe':2 'i':1
                                   'search_artist'  'fears':3 'for':2 'tears':1
                                  'search_release'  '82':7 '8292':9 '92':8 'down':3,4 'greatest':5 'hits':6 'roll':2 'tears':1
                                     'search_rest'  '00electro':2 '00poprockelectronic':1 'electronic':6 'electropop':3 'for':5 'synthpop':4 'we':7
                                    'search_combo'  '00electro':16 '00poprockelectronic':15 '82':12C '8292':14C '92':13C 'believe':2A 'down':8C,9C 'electronic':20 'electropop':17 'fears':5B 'for':4B,19 'greatest':10C 'hits':11C 'i':1A 'roll':7C 'synthpop':18 'tears':3B,6C 'we':21
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'Q-PIANO-2', 'q-mixbeat-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'new wave', 'synth pop', 'pop', 'rock']
                                        'tag_date'  1992
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628353818.7814941  (2021-08-07 18:30:18)
                             'size'  4708655