======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '116'
                                          'artist'  'System Of A Down'
                                     'text_people'  'Daron Malakian'
                                         'release'  'Steal This Album!'
                                           'title'  'Bubbles'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-4', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['alternative metal', 'alternative', 'metal', 'nu metal', 'rock']"
                                     'discogstags'  "['rock', 'heavy metal', 'alternative rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '113.263'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Steal This Album!'
'TBPM' (BPM (beats per minute))                     '113.263'
'TCOM' (Composer)                                   'Daron Malakian'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Bubbles'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'System Of A Down'
'TPE2' (Band/orchestra/accompaniment)               'System Of A Down'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sony'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['rock', 'heavy metal', 'alternative rock']
'TXXX:lastfmtags'                                   ['alternative metal', 'alternative', 'metal', 'nu metal', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.77 dB'
'TXXX:replaygain_track_peak'                        '0.311126'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3M109R87626586U29866FD8EC4556CEB209F24CB90A9EC66C5P2')

========================== row from database ==========================
                                              'id'  1329766
                                            'path'  /data/Music/Bulk/00poprockelectronic/System Of A Down/Steal This Album/System of a Down - 03 - Bubbles.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  116
                                           'genre'  eid-metal-nu
                                        'filesize'  2808852
                                           'mtime'  1620311147
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic of 03 eid metal nu
                                      'tag_artist'  System Of A Down
                                     'tag_release'  Steal This Album!
                                       'tag_title'  Bubbles
                                             'bpm'  113.263
                                    'search_title'  'bubbles':1
                                   'search_artist'  'a':3 'down':4 'of':2 'system':1
                                  'search_release'  'album':3 'steal':1 'this':2
                                     'search_rest'  '00poprockelectronic':1 'eid':3 'metal':4 'nu':5 'of':2
                                    'search_combo'  '00poprockelectronic':9 'a':4B 'album':8C 'bubbles':1A 'down':5B 'eid':11 'metal':12 'nu':13 'of':3B,10 'steal':6C 'system':2B 'this':7C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['alternative metal', 'alternative', 'metal', 'nu metal', 'rock']
                                        'tag_date'  2002
                                     'discogstags'  ['rock', 'heavy metal', 'alternative rock']

============================== file details ==============================
                                           'mtime'  1620311146.5858743  (2021-05-06 16:25:46)
                             'size'  2808852