======================== unified (from filesystem) ========================
                                         'bitrate'  '125.615'
                                        'duration'  '210'
                                          'artist'  'Gus & Gus'
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                                         'release'  "Waldeck's Gramophone, Volume 1: Swing & Champagne"
                                           'title'  'Harlem Swing'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', "
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '15'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '103.8'
                                             'key'  '4A'
                                        'acoustid'  'd9909e8f-deff-425b-8a69-787e2c72fa3e'
rest: ''

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

'TALB' (Album/Movie/Show title)                     "Waldeck's Gramophone, Volume 1: Swing & Champagne"
'TBPM' (BPM (beats per minute))                     '103.8'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDOR' (Original release time)                      '2007'
'TDRC' (Recording time)                             '2008-01-29'
'TIT2' (Title/songname/content description)         'Harlem Swing'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Gus & Gus'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dope Noir'
'TRCK' (Track number/Position in set)               '11/15'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Gus & Gus'
'TXXX:ASIN'                                         'B000YCLRG0'
'TXXX:Acoustid Id'                                  'd9909e8f-deff-425b-8a69-787e2c72fa3e'
'TXXX:BARCODE'                                      '820857002527'
'TXXX:CATALOGNUMBER'                                'DONO 25'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         'cdd0dde7-1266-46aa-a7d4-856b141f778d'
'TXXX:MusicBrainz Album Release Country'            'AT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        '05429419-f75b-4201-a388-61fbee9ff499'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   'all'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.26 dB'
'TXXX:replaygain_track_peak'                        '0.420639'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'2bfabf0c-7af9-415b-beaa-54d347225529')

========================== row from database ==========================
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                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/Michel Warlop et son orchestre - waldeck gramophone , vol.1 - 2007/11. gus & gus - harlem swing.mp3
                                         'working'  None
                                         'bitrate'  125
                                    'duration_sec'  210
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  3311902
                                           'mtime'  1636910792
                                   'redo_metaread'  0
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                                      'tag_artist'  Gus & Gus
                                     'tag_release'  Waldeck's Gramophone, Volume 1: Swing & Champagne
                                       'tag_title'  Harlem Swing
                                             'bpm'  103.8
                                    'search_title'  'harlem':1 'swing':2
                                   'search_artist'  'gus':1
                                  'search_release'  '1':7,8 'champagne':10 'gramophone':4,5 's':2 'swing':9 'volume':6 'waldeck':1 'waldecks':3
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                                    'search_combo'  '00poprockelectronic':14 '00trip':15 '1':10C,11C,24 '11':27,28 '2007':26 'acid':37 'champagne':13C 'downtempo':36 'electronic':32 'et':18 'gramophone':7C,8C,22 'gus':3B,29 'harlem':1A,30 'hop':34 'jazz':38 'michel':16 'or':35 'orchestre':20 's':5C 'son':19 'swing':2A,12C,31 'trip':33 'vol':23 'vol1':25 'volume':9C 'waldeck':4C,21 'waldecks':6C 'warlop':17
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['all']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636910791.659498  (2021-11-14 18:26:31)
                             'size'  3311902