======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '254'
                                          'artist'  'The Vogue'
                                     'text_people'  ''
                                         'release'  'As Brass and Satin'
                                           'title'  'March Of Black And White Roses'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'new wave', 'jazz', 'experimental', 'under 2000 listeners']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '8'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted;set-pl-sced'
                                             'bpm'  '139.466'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'COMM:iTunNORM:eng'                                 (' 000016E8 00000F18 0000E886 00004B9C 0000110A 000105D6 000088B1 00008797 '
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'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008DC 0000000000AB7794 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '8+AA4411BD3B88BB339DCF57A86346BDCB+901137'
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'TBPM' (BPM (beats per minute))                     '139.466'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-indie-unsorted', 'set-pl-sced']
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         'March Of Black And White Roses'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Vogue'
'TPE2' (Band/orchestra/accompaniment)               'The Vogue'
'TRCK' (Track number/Position in set)               '6/8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['indie', 'new wave', 'jazz', 'experimental', 'under 2000 listeners']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.99 dB'
'TXXX:replaygain_track_peak'                        '0.451871'

========================== row from database ==========================
                                              'id'  1301409
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Vogue/[2000] As Brass and Satin/06 March Of Black And White Roses.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  254
                                           'genre'  ifs-songwriter-indie-unsorted;set-pl-sced
                                        'filesize'  10212155
                                           'mtime'  1642256471
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2000] 06 ifs songwriter indie unsorted;set pl sced
                                      'tag_artist'  The Vogue
                                     'tag_release'  As Brass and Satin
                                       'tag_title'  March Of Black And White Roses
                                             'bpm'  139.466
                                    'search_title'  'and':4 'black':3 'march':1 'of':2 'roses':6 'white':5
                                   'search_artist'  'the':1 'vogue':2
                                  'search_release'  'and':3 'as':1 'brass':2 'satin':4
                                     'search_rest'  '00poprockelectronic':1 '2000':2,3 'ifs':4 'indie':6 'pl':11 'sced':12 'set':8,10 'songwriter':5 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':13 '2000':14,15 'and':4A,11C 'as':9C 'black':3A 'brass':10C 'ifs':16 'indie':18 'march':1A 'of':2A 'pl':23 'roses':6A 'satin':12C 'sced':24 'set':20,22 'songwriter':17 'the':7B 'unsorted':19,21 'vogue':8B 'white':5A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', 'q-mixbeat-1']
                                      'lastfmtags'  ['indie', 'new wave', 'jazz', 'experimental', 'under 2000 listeners']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256470.540114  (2022-01-15 15:21:10)
                             'size'  10212155