======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '208'
                                          'artist'  'After Forever'
                                     'text_people'  'After Forever'
                                         'release'  'After Forever'
                                           'title'  'Transitory'
                                           '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-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  '13'
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '140.1'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 000027C5 000027CC 0000D50E 0000C291 0000D1B1 00005D43 00008B9A 00008C2F '
 '0000FA34 000100BC')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A80 00000000008C9370 00000000 0065F054 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '13+890AA317A4300B94244BC714FF0026CB+9151575'
'TALB' (Album/Movie/Show title)                     'After Forever'
'TBPM' (BPM (beats per minute))                     '140.1'
'TCOM' (Composer)                                   'After Forever'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDRC' (Recording time)                             '2007'
'TENC' (Encoded by)                                 'iTunes v7.1.1.5'
'TIT2' (Title/songname/content description)         'Transitory'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'After Forever'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '3/13'
'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'                                   ['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.14 dB'
'TXXX:replaygain_track_peak'                        '0.332158'

========================== row from database ==========================
                                              'id'  1398316
                                            'path'  /data/Music/Bulk/00dwimp/00metal/After Forever/After Forever/03 Transitory.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  208
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  6710971
                                           'mtime'  1620310286
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 03 eid metal doom gothic
                                      'tag_artist'  After Forever
                                     'tag_release'  After Forever
                                       'tag_title'  Transitory
                                             'bpm'  140.1
                                    'search_title'  'transitory':1
                                   'search_artist'  'after':1 'forever':2
                                  'search_release'  'after':1 'forever':2
                                     'search_rest'  '00dwimp':1 '00metal':2 'doom':5 'eid':3 'gothic':6 'metal':4
                                    'search_combo'  '00dwimp':6 '00metal':7 'after':2B,4C 'doom':10 'eid':8 'forever':3B,5C 'gothic':11 'metal':9 'transitory':1A
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             '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-2', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['metal', 'gothic', 'female fronted metal', 'symphonic metal', 'gothic metal']
                                        'tag_date'  2007
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310286.21584  (2021-05-06 16:11:26)
                             'size'  6710971