======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '513'
                                          'artist'  'Bossk'
                                     'text_people'  ''
                                         'release'  'Audio Noir'
                                           'title'  'Atom Smasher'
                                           '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-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['sludge', 'instrumental', 'post rock', 'post metal', 'progressive metal']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '7'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'eid-metal-progressive'
                                             'bpm'  '103.1'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00001212 00001490 000058D8 000052EC 0004D91F 00020DB6 000088EB 000089FF '
 '0000EE5E 0001672F')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000A3F 000000000159C8B1 00000000 01398D63 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Audio Noir'
'TBPM' (BPM (beats per minute))                     '103.1'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDRC' (Recording time)                             '2016'
'TENC' (Encoded by)                                 'iTunes 12.3.2.35'
'TIT2' (Title/songname/content description)         'Atom Smasher'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bossk'
'TPE2' (Band/orchestra/accompaniment)               'Bossk'
'TRCK' (Track number/Position in set)               '5/7'
'TSO2'                                              'Bossk'
'TSOA' (Album sort order)                           'Audio Noir'
'TSOP' (Performer sort order)                       'Bossk'
'TSOT' (Title sort order)                           'Atom Smasher'
'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'                                   ['sludge', 'instrumental', 'post rock', 'post metal', 'progressive metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.74 dB'
'TXXX:replaygain_track_peak'                        '0.381052'

========================== row from database ==========================
                                              'id'  1402495
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Bossk - (2016) Audio Noir/05 - Atom Smasher.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  513
                                           'genre'  eid-metal-progressive
                                        'filesize'  20959189
                                           'mtime'  1620310862
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (2016) 05 eid metal progressive
                                      'tag_artist'  Bossk
                                     'tag_release'  Audio Noir
                                       'tag_title'  Atom Smasher
                                             'bpm'  103.1
                                    'search_title'  'atom':1 'smasher':2
                                   'search_artist'  'bossk':1
                                  'search_release'  'audio':1 'noir':2
                                     'search_rest'  '00dwimp':1 '00metal':2 '2016':3,4 'eid':5 'metal':6 'progressive':7
                                    'search_combo'  '00dwimp':6 '00metal':7 '2016':8,9 'atom':1A 'audio':4C 'bossk':3B 'eid':10 'metal':11 'noir':5C 'progressive':12 'smasher':2A
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-3']
                                      'lastfmtags'  ['sludge', 'instrumental', 'post rock', 'post metal', 'progressive metal']
                                        'tag_date'  2016
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310861.970782  (2021-05-06 16:21:01)
                             'size'  20959189