======================== unified (from filesystem) ========================
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                                        'duration'  '175'
                                          'artist'  'The Offspring'
                                     'text_people'  ''
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                                      'lastfmtags'  "['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  '26'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '114'
                                             'key'  '4A'
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rest: ''

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'TALB' (Album/Movie/Show title)                     'Punk-O-Rama, Volume 10'
'TBPM' (BPM (beats per minute))                     '114'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2005-06-07'
'TENC' (Encoded by)                                 'lame'
'TIT2' (Title/songname/content description)         'Mission From God'
'TKEY' (Initial key)                                '4A'
'TLAN' (Language(s))                                'english'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'The Offspring'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Epitaph'
'TRCK' (Track number/Position in set)               '12/26'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Offspring, The'
'TSRC' (ISRC (international standard recording code))  'USEP40505112'
'TXXX:ASIN'                                         'B0009G3B6A'
'TXXX:Acoustid Id'                                  'fa40535f-95c2-4147-906b-9e183edc9cca'
'TXXX:Artists'                                      'The Offspring'
'TXXX:BARCODE'                                      '045778675524'
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'TXXX:Q-LOCALNESS'                                  '1'
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'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
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========================== row from database ==========================
                                              'id'  1421571
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Pennywise - Epitaph/Punk-o-Rama Vol. 10/12 - Offspring The - Mission From God.mp3
                                         'working'  None
                                         'bitrate'  235
                                    'duration_sec'  175
                                           'genre'  rock-gr-punk
                                        'filesize'  5249598
                                           'mtime'  1622659059
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner Pennywise Epitaph Vol. 12 rock gr punk
                                      'tag_artist'  The Offspring
                                     'tag_release'  Punk-O-Rama, Volume 10
                                       'tag_title'  Mission From God
                                             'bpm'  114.0
                                    'search_title'  'from':2 'god':3 'mission':1
                                   'search_artist'  'offspring':2 'the':1
                                  'search_release'  'o':2 'punk':1 'punkorama':4 'rama':3 'volume':5
                                     'search_rest'  'epitaph':6 'garage':2 'gr':10 'pennywise':5 'punk':1 'rock':9 'stoner':4 'surf':3 'vol':7,8
                                    'search_combo'  'epitaph':16 'from':2A 'garage':12 'god':3A 'gr':20 'mission':1A 'o':7C 'offspring':5B 'pennywise':15 'punk':6C,11 'punkorama':9C 'rama':8C 'rock':19 'stoner':14 'surf':13 'the':4B 'vol':17,18 'volume':10C
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['alternative rock', 'punk rock', 'punk', 'alternative', 'rock']
                                        'tag_date'  2005
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659058.9472792  (2021-06-02 20:37:38)
                             'size'  5249598