======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '240'
                                          'artist'  'Thrice'
                                     'text_people'  'Dustin Kensrue/Thrice'
                                         'release'  'The Artist In The Ambulance'
                                           'title'  'Paper Tigers'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-2', "
 "'q-chart-3', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk-emo'
                                             'bpm'  '123.406'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/WMContentID:)`\\ú`HÌF\x9fø÷õ+¯ÉR'          PRIV(owner='WM/WMContentID', data=b')`\\\xfa`H\xccF\x9f\xf8\xf7\xf5+\xaf\xc9R')
'TALB' (Album/Movie/Show title)                     'The Artist In The Ambulance'
'TBPM' (BPM (beats per minute))                     '123.406'
'TCOM' (Composer)                                   'Dustin Kensrue/Thrice'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk-emo'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Paper Tigers'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Thrice'
'TPE2' (Band/orchestra/accompaniment)               'Thrice'
'TPUB' (Publisher)                                  'Island'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.91 dB'
'TXXX:replaygain_track_peak'                        '0.359032'

========================== row from database ==========================
                                              'id'  1352605
                                            'path'  /data/Music/Bulk/00poprockelectronic/Thrice/The Artist in the Ambulance/06 - Thrice - Paper Tigers.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  240
                                           'genre'  rock-gr-punk-emo
                                        'filesize'  5772166
                                           'mtime'  1636400207
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic in the 06 rock gr punk emo
                                      'tag_artist'  Thrice
                                     'tag_release'  The Artist In The Ambulance
                                       'tag_title'  Paper Tigers
                                             'bpm'  123.406
                                    'search_title'  'paper':1 'tigers':2
                                   'search_artist'  'thrice':1
                                  'search_release'  'ambulance':4 'artist':2 'in':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'emo':7 'gr':5 'in':2 'punk':6 'rock':4 'the':3
                                    'search_combo'  '00poprockelectronic':8 'ambulance':7C 'artist':5C 'emo':14 'gr':12 'in':6C,9 'paper':1A 'punk':13 'rock':11 'the':4C,10 'thrice':3B 'tigers':2A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['emo', 'punk', 'post hardcore', 'rock', 'alternative', 'hardcore']
                                        'tag_date'  2003
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636400206.986214  (2021-11-08 20:36:46)
                             'size'  5772166