======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '305'
                                          'artist'  'The Ocean'
                                     'text_people'  ''
                                         'release'  'Pelagial (Instrumental)'
                                           'title'  'Abyssopelagic II: Signals of Anxiety (Instrumental)'
                                           '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-3', 'q-drums-2', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['sludge', 'hardcore', 'progressive metal', 'experimental', 'post metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '07'
                                      'tracktotal'  '11'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'eid-metal-progressive'
                                             'bpm'  '132.5'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000F43 0000138D 00007328 00008346 0002721F 0001DB4E 00008DE2 00008FFB '
 '00028D29 0001D563')
'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000B4C 0000000000CD7424 00000000 006FC36E 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Pelagial (Instrumental)'
'TBPM' (BPM (beats per minute))                     '132.5'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-progressive'
'TDRC' (Recording time)                             '2013'
'TENC' (Encoded by)                                 'iTunes 10.6.3'
'TIT2' (Title/songname/content description)         'Abyssopelagic II: Signals of Anxiety (Instrumental)'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Ocean'
'TPE2' (Band/orchestra/accompaniment)               'The Ocean'
'TRCK' (Track number/Position in set)               '07/11'
'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:lastfmtags'                                   ['sludge', 'hardcore', 'progressive metal', 'experimental', 'post metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.19 dB'
'TXXX:replaygain_track_peak'                        '0.403509'

========================== row from database ==========================
                                              'id'  1393044
                                            'path'  /data/Music/Bulk/00dwimp/00metal/The Ocean - Pelagial (2013) [Instrumental]/07-Abyssopelagic II Signals of Anxiety (Instrumental).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  305
                                           'genre'  eid-metal-progressive
                                        'filesize'  7731960
                                           'mtime'  1620310891
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (2013) [Instrumental] 07 eid metal progressive
                                      'tag_artist'  The Ocean
                                     'tag_release'  Pelagial (Instrumental)
                                       'tag_title'  Abyssopelagic II: Signals of Anxiety (Instrumental)
                                             'bpm'  132.5
                                    'search_title'  'abyssopelagic':1 'anxiety':6 'ii':2,3 'instrumental':7,8 'of':5 'signals':4
                                   'search_artist'  'ocean':2 'the':1
                                  'search_release'  'instrumental':2,3 'pelagial':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2013':3,4 'eid':7 'instrumental':5,6 'metal':8 'progressive':9
                                    'search_combo'  '00dwimp':14 '00metal':15 '2013':16,17 'abyssopelagic':1A 'anxiety':6A 'eid':20 'ii':2A,3A 'instrumental':7A,8A,12C,13C,18,19 'metal':21 'ocean':10B 'of':5A 'pelagial':11C 'progressive':22 'signals':4A 'the':9B
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  8A
                                           '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-2', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['sludge', 'hardcore', 'progressive metal', 'experimental', 'post metal']
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310891.2032118  (2021-05-06 16:21:31)
                             'size'  7731960