======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '166'
                                          'artist'  'Blur'
                                     'text_people'  'Alex James/Damon Albarn/Dave Rowntree/Graham Coxon'
                                         'release'  'The Best of Blur Disc 1'
                                           'title'  'End of a Century'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'alternative', 'britpop', 'british', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-rock'
                                             'bpm'  '145.267'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/WMCollectionGroupID:Í\x1a^?\x9b\x16HH\x92\x07º×\x93ó0\x98'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xcd\x1a^?\x9b\x16HH\x92\x07\xba\xd7\x93\xf30\x98')
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'TALB' (Album/Movie/Show title)                     'The Best of Blur Disc 1'
'TBPM' (BPM (beats per minute))                     '145.267'
'TCOM' (Composer)                                   'Alex James/Damon Albarn/Dave Rowntree/Graham Coxon'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-rock'
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'End of a Century'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '166933'
'TPE1' (Lead performer(s)/Soloist(s))               'Blur'
'TPE2' (Band/orchestra/accompaniment)               'Blur'
'TPUB' (Publisher)                                  'Food/Virgin'
'TRCK' (Track number/Position in set)               '7'
'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', 'alternative', 'britpop', 'british', 'rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.439582'

========================== row from database ==========================
                                              'id'  1349555
                                            'path'  /data/Music/Bulk/00poprockelectronic/Blur/The Best of Blur Disc 1/07 End of a Century.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  166
                                           'genre'  ifs-songwriter-indie-rock
                                        'filesize'  4009380
                                           'mtime'  1637330383
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 07 ifs songwriter indie rock
                                      'tag_artist'  Blur
                                     'tag_release'  The Best of Blur Disc 1
                                       'tag_title'  End of a Century
                                             'bpm'  145.267
                                    'search_title'  'a':3 'century':4 'end':1 'of':2
                                   'search_artist'  'blur':1
                                  'search_release'  '1':6 'best':2 'blur':4 'disc':5 'of':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'ifs':2 'indie':4 'rock':5 'songwriter':3
                                    'search_combo'  '00poprockelectronic':12 '1':11C 'a':3A 'best':7C 'blur':5B,9C 'century':4A 'disc':10C 'end':1A 'ifs':13 'indie':15 'of':2A,8C 'rock':16 'songwriter':14 'the':6C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'britpop', 'british', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637330382.5966492  (2021-11-19 14:59:42)
                             'size'  4009380