======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '113'
                                          'artist'  'Bad Religion'
                                     'text_people'  'Brett Gurewitz/Greg Graffin'
                                         'release'  'The Empire Strikes First'
                                           'title'  'Sinister Rouge'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['political', 'punk rock', 'punk', 'alternative', 'rock']"
                                     'discogstags'  "['rock', 'punk']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2004'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '94.503'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'The Empire Strikes First'
'TBPM' (BPM (beats per minute))                     '94.503'
'TCOM' (Composer)                                   'Brett Gurewitz/Greg Graffin'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2004'
'TIT2' (Title/songname/content description)         'Sinister Rouge'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bad Religion'
'TPE2' (Band/orchestra/accompaniment)               'Bad Religion'
'TPUB' (Publisher)                                  'Epitaph'
'TRCK' (Track number/Position in set)               '2'
'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:discogstags'                                  ['rock', 'punk']
'TXXX:lastfmtags'                                   ['political', 'punk rock', 'punk', 'alternative', 'rock']
'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'                        '-1.68 dB'
'TXXX:replaygain_track_peak'                        '0.368424'

========================== row from database ==========================
                                              'id'  1284675
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bad Religion/The Empire Strikes First/02 - Sinister Rouge.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  113
                                           'genre'  rock-gr-punk
                                        'filesize'  2729810
                                           'mtime'  1622659257
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 02 rock gr punk
                                      'tag_artist'  Bad Religion
                                     'tag_release'  The Empire Strikes First
                                       'tag_title'  Sinister Rouge
                                             'bpm'  94.503
                                    'search_title'  'rouge':2 'sinister':1
                                   'search_artist'  'bad':1 'religion':2
                                  'search_release'  'empire':2 'first':4 'strikes':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 'gr':3 'punk':4 'rock':2
                                    'search_combo'  '00poprockelectronic':9 'bad':3B 'empire':6C 'first':8C 'gr':11 'punk':12 'religion':4B 'rock':10 'rouge':2A 'sinister':1A 'strikes':7C 'the':5C
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           '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'  2004
                                     'discogstags'  ['rock', 'punk']

============================== file details ==============================
                                           'mtime'  1622659257.2306802  (2021-06-02 20:40:57)
                             'size'  2729810