======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '197'
                                          'artist'  'System Of A Down'
                                     'text_people'  'Daron Malakian'
                                         'release'  'Steal This Album!'
                                           'title'  'A.D.D.'
                                           '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-3', 'q-other-3', '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'  '6'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '117.603'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Steal This Album!'
'TBPM' (BPM (beats per minute))                     '117.603'
'TCOM' (Composer)                                   'Daron Malakian'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'A.D.D.'
'TKEY' (Initial key)                                '5A'
'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)               '6'
'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'                                      '3'
'TXXX:q-grit'                                       '4'
'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'                        '-1.67 dB'
'TXXX:replaygain_track_peak'                        '0.379190'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3O8R87626589V387FF120E8ECAF7271B6BAE7DF9989466DP0')

========================== row from database ==========================
                                              'id'  1295407
                                            'path'  /data/Music/Bulk/00poprockelectronic/System Of A Down/Steal This Album/System of a Down - 06 - A.D.D..mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  197
                                           'genre'  eid-metal-nu
                                        'filesize'  4738570
                                           'mtime'  1620311147
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic of 06 eid metal nu
                                      'tag_artist'  System Of A Down
                                     'tag_release'  Steal This Album!
                                       'tag_title'  A.D.D.
                                             'bpm'  117.603
                                    'search_title'  'a':1 'add':4 'd':2,3
                                   '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':12 'a':1A,7B 'add':4A 'album':11C 'd':2A,3A 'down':8B 'eid':14 'metal':15 'nu':16 'of':6B,13 'steal':9C 'system':5B 'this':10C
                                    '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-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', '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'  1620311146.6150672  (2021-05-06 16:25:46)
                             'size'  4738570