======================== unified (from filesystem) ========================
                                         'bitrate'  '168.206'
                                        'duration'  '170'
                                          'artist'  'Nintendo'
                                     'text_people'  ''
                                         'release'  'Super Smash Bros. Brawl OST'
                                           'title'  'Underworld'
                                           'quals'  ("['Q-HAP-3', '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-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['video game music', 'game music', 'soundtrack', 'game', 'video game']"
                                     'discogstags'  "['punk', 'indie rock', 'experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '02'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'soundtrack-game'
                                             'bpm'  '112.134'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Super Smash Bros. Brawl OST'
'TBPM' (BPM (beats per minute))                     '112.134'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-game'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         ['Underworld', 'Underworld [Super Mario Bros.]']
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nintendo'
'TPE2' (Band/orchestra/accompaniment)               'Nintendo'
'TRCK' (Track number/Position in set)               '02'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['punk', 'indie rock', 'experimental', 'rock']
'TXXX:lastfmtags'                                   ['video game music', 'game music', 'soundtrack', 'game', 'video game']
'TXXX:other'                                        'Super Mario Bros.'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.46 dB'
'TXXX:replaygain_track_peak'                        '0.611071'

========================== row from database ==========================
                                              'id'  1202467
                                            'path'  /data/Music/Bulk/0soundtrack/Super Smash Bros. Brawl OST/02 Underworld [Super Mario Bros.].mp3
                                         'working'  None
                                         'bitrate'  168
                                    'duration_sec'  170
                                           'genre'  soundtrack-game
                                        'filesize'  3591131
                                           'mtime'  1620532695
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack 02 [Super Mario Bros.] soundtrack game
                                      'tag_artist'  Nintendo
                                     'tag_release'  Super Smash Bros. Brawl OST
                                       'tag_title'  Underworld
                                             'bpm'  112.134
                                    'search_title'  'underworld':1
                                   'search_artist'  'nintendo':1
                                  'search_release'  'brawl':5 'bros':3,4 'ost':6 'smash':2 'super':1
                                     'search_rest'  '0soundtrack':1 'bros':5,6 'game':8 'mario':4 'soundtrack':7 'super':2,3
                                    'search_combo'  '0soundtrack':9 'brawl':7C 'bros':5C,6C,13,14 'game':16 'mario':12 'nintendo':2B 'ost':8C 'smash':4C 'soundtrack':15 'super':3C,10,11 'underworld':1A
                                    'tag_tracknum'  2
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['video game music', 'game music', 'soundtrack', 'game', 'video game']
                                        'tag_date'  2005
                                     'discogstags'  ['punk', 'indie rock', 'experimental', 'rock']

============================== file details ==============================
                                           'mtime'  1620532694.8852863  (2021-05-09 05:58:14)
                             'size'  3591131