======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '158'
                                          'artist'  'Obscure Sphinx'
                                     'text_people'  ''
                                         'release'  'Void Mother'
                                           'title'  'Velorio'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-4', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['sludge', 'polish', 'sludge metal', 'post metal', 'experimental']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '9'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'eid-metal-sludge or grind'
                                             'bpm'  '135.004'
                                             'key'  '8A'
                                        'acoustid'  '6e7e654c-60d1-4875-a404-4e2e1f22ed85'
rest: ''

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

'APIC:cover'                                        type PictureType.COVER_FRONT (Cover (front)) b'cover'
                                     
'TALB' (Album/Movie/Show title)                     'Void Mother'
'TBPM' (BPM (beats per minute))                     '135.004'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-sludge or grind'
'TDOR' (Original release time)                      '2013'
'TDRC' (Recording time)                             '2013-11-15'
'TIT2' (Title/songname/content description)         'Velorio'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'Digital Media'
'TPE1' (Lead performer(s)/Soloist(s))               'Obscure Sphinx'
'TPE2' (Band/orchestra/accompaniment)               'Obscure Sphinx'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  '[no label]'
'TRCK' (Track number/Position in set)               '2/9'
'TSO2'                                              'Obscure Sphinx'
'TSOP' (Performer sort order)                       'Obscure Sphinx'
'TXXX:Acoustid Id'                                  '6e7e654c-60d1-4875-a404-4e2e1f22ed85'
'TXXX:MusicBrainz Album Artist Id'                  '1ba3e800-506a-4091-af45-d30046327505'
'TXXX:MusicBrainz Album Id'                         '267186eb-f987-419f-a8df-6908f68deafb'
'TXXX:MusicBrainz Album Release Country'            'XW'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '1ba3e800-506a-4091-af45-d30046327505'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['sludge', 'polish', 'sludge metal', 'post metal', 'experimental']
'TXXX:q-bass'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.77 dB'
'TXXX:replaygain_track_peak'                        '0.503095'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ee1ba717-7a25-4bab-8cae-0f6bd425e090')

========================== row from database ==========================
                                              'id'  1394088
                                            'path'  /data/Music/Bulk/00dwimp/00metal/obscure sphinx - 2013 - void mother/02 - Velorio.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  158
                                           'genre'  eid-metal-sludge or grind
                                        'filesize'  6566495
                                           'mtime'  1620310868
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal obscure sphinx 2013 void mother 02 eid metal sludge grind
                                      'tag_artist'  Obscure Sphinx
                                     'tag_release'  Void Mother
                                       'tag_title'  Velorio
                                             'bpm'  135.004
                                    'search_title'  'velorio':1
                                   'search_artist'  'obscure':1 'sphinx':2
                                  'search_release'  'mother':2 'void':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2013':5 'eid':8 'grind':11 'metal':9 'mother':7 'obscure':3 'sludge':10 'sphinx':4 'void':6
                                    'search_combo'  '00dwimp':6 '00metal':7 '2013':10 'eid':13 'grind':16 'metal':14 'mother':5C,12 'obscure':2B,8 'sludge':15 'sphinx':3B,9 'velorio':1A 'void':4C,11
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-3', 'q-grit-4']
                                      'lastfmtags'  ['sludge', 'polish', 'sludge metal', 'post metal', 'experimental']
                                        'tag_date'  2013
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620310867.812257  (2021-05-06 16:21:07)
                             'size'  6566495