======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '134'
                                          'artist'  'Bad Religion'
                                     'text_people'  ''
                                         'release'  'No Substance'
                                           'title'  'The Biggest Killer in American History'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
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                                      'lastfmtags'  "['political', 'punk rock', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'punk', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '17'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '137'
                                             'key'  '8A'
                                        'acoustid'  '36fc62a2-b44c-4c47-8cfe-b5872c1a95d2'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'No Substance'
'TBPM' (BPM (beats per minute))                     '137'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998-05-08'
'TIT2' (Title/songname/content description)         'The Biggest Killer in American History'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Bad Religion'
'TPE2' (Band/orchestra/accompaniment)               'Bad Religion'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Dragnet'
'TRCK' (Track number/Position in set)               '4/17'
'TSO2'                                              'Bad Religion'
'TSOP' (Performer sort order)                       'Bad Religion'
'TSRC' (ISRC (international standard recording code))  'DEE869800151'
'TXXX:ASIN'                                         'B0000089A7'
'TXXX:Acoustid Id'                                  '36fc62a2-b44c-4c47-8cfe-b5872c1a95d2'
'TXXX:Artists'                                      'Bad Religion'
'TXXX:BARCODE'                                      '4988010694920'
'TXXX:CATALOGNUMBER'                                'ESCA-6949'
'TXXX:MusicBrainz Album Artist Id'                  '149e6720-4e4a-41a4-afca-6d29083fc091'
'TXXX:MusicBrainz Album Id'                         '79f79d11-129c-46f7-bbbd-ee926dd1664f'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '149e6720-4e4a-41a4-afca-6d29083fc091'
'TXXX:MusicBrainz Release Group Id'                 'd56c7a34-8f01-3639-89ec-0f2bdaecc1d4'
'TXXX:MusicBrainz Release Track Id'                 'bee5b2d5-b668-342d-8c8d-e3761af14776'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'punk', 'alternative rock']
'TXXX:lastfmtags'                                   ['political', 'punk rock', 'punk', 'alternative', 'rock']
'TXXX:originalyear'                                 '1998'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.15 dB'
'TXXX:replaygain_track_peak'                        '0.405207'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'56fd9f43-0dc5-4165-904d-01a471d0a1b0')

========================== row from database ==========================
                                              'id'  1315089
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bad Religion/No Substance/Bad Religion - The Biggest Killer In American History.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  134
                                           'genre'  rock-gr-punk
                                        'filesize'  2209537
                                           'mtime'  1622659247
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic In rock gr punk
                                      'tag_artist'  Bad Religion
                                     'tag_release'  No Substance
                                       'tag_title'  The Biggest Killer in American History
                                             'bpm'  137.0
                                    'search_title'  'american':5 'biggest':2 'history':6 'in':4 'killer':3 'the':1
                                   'search_artist'  'bad':1 'religion':2
                                  'search_release'  'no':1 'substance':2
                                     'search_rest'  '00poprockelectronic':1 'gr':4 'in':2 'punk':5 'rock':3
                                    'search_combo'  '00poprockelectronic':11 'american':5A 'bad':7B 'biggest':2A 'gr':14 'history':6A 'in':4A,12 'killer':3A 'no':9C 'punk':15 'religion':8B 'rock':13 'substance':10C 'the':1A
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['political', 'punk rock', 'punk', 'alternative', 'rock']
                                        'tag_date'  1998
                                     'discogstags'  ['rock', 'punk', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1622659246.6767263  (2021-06-02 20:40:46)
                             'size'  2209537