======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '316'
                                          'artist'  'Lamb Of God'
                                     'text_people'  'Lamb Of God'
                                         'release'  'New American Gospel'
                                           'title'  'O.D.H.G.A.B.F.E.'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '14'
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'eid-metal-death'
                                             'bpm'  '135.1'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunNORM:eng'                                 (' 0000221B 00003F27 0000ACF0 0000C608 00004A63 00004A63 00009021 00008E5F '
 '00036DDB 0000AF1A')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000780 0000000000D4A3F0 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '14+932E3A1E07CC55DE9A572CFFE3C69986+7145781'
'TALB' (Album/Movie/Show title)                     'New American Gospel'
'TBPM' (BPM (beats per minute))                     '135.1'
'TCOM' (Composer)                                   'Lamb Of God'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-death'
'TDRC' (Recording time)                             '2006'
'TENC' (Encoded by)                                 'iTunes v6.0.4.2'
'TIT2' (Title/songname/content description)         'O.D.H.G.A.B.F.E.'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Lamb Of God'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '10/14'
'TXXX:Q-HAP'                                        '1'
'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'                                   ['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.51 dB'
'TXXX:replaygain_track_peak'                        '0.334673'

========================== row from database ==========================
                                              'id'  1398501
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Lamb Of God/New American Gospel/Lamb Of God-O.D.H.G.A.B.F.E.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  316
                                           'genre'  eid-metal-death
                                        'filesize'  12644453
                                           'mtime'  1620302066
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal eid metal death
                                      'tag_artist'  Lamb Of God
                                     'tag_release'  New American Gospel
                                       'tag_title'  O.D.H.G.A.B.F.E.
                                             'bpm'  135.1
                                    'search_title'  'a':5 'b':6 'd':2 'e':8 'f':7 'g':4 'h':3 'o':1 'odhgabfe':9
                                   'search_artist'  'god':3 'lamb':1 'of':2
                                  'search_release'  'american':2 'gospel':3 'new':1
                                     'search_rest'  '00dwimp':1 '00metal':2 'death':5 'eid':3 'metal':4
                                    'search_combo'  '00dwimp':16 '00metal':17 'a':5A 'american':14C 'b':6A 'd':2A 'death':20 'e':8A 'eid':18 'f':7A 'g':4A 'god':12B 'gospel':15C 'h':3A 'lamb':10B 'metal':19 'new':13C 'o':1A 'odhgabfe':9A 'of':11B
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['metalcore', 'thrash metal', 'metal', 'death metal', 'groove metal']
                                        'tag_date'  2006
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620302065.8915372  (2021-05-06 13:54:25)
                             'size'  12644453