======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '347'
                                          'artist'  'John Zorn'
                                     'text_people'  ''
                                         'release'  'Music for Children'
                                           'title'  'Dreamer of Dreams'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['free jazz', 'noise', 'jazz', 'avant garde', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  '8'
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-experimental'
                                             'bpm'  '101.513'
                                             'key'  '8A'
                                        'acoustid'  '5612a4fc-c583-4545-b48c-41917a3d9313'
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Music for Children'
'TBPM' (BPM (beats per minute))                     '101.513'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental'
'TDOR' (Original release time)                      '1998'
'TDRC' (Recording time)                             '1998-10-20'
'TIT2' (Title/songname/content description)         'Dreamer of Dreams'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '347000'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'John Zorn'
'TPE2' (Band/orchestra/accompaniment)               'John Zorn'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Tzadik'
'TRCK' (Track number/Position in set)               '6/8'
'TSO2'                                              'Zorn, John'
'TSOP' (Performer sort order)                       'Zorn, John'
'TXXX:ASIN'                                         'B00000DBW3'
'TXXX:Acoustid Id'                                  '5612a4fc-c583-4545-b48c-41917a3d9313'
'TXXX:BARCODE'                                      '702397732129'
'TXXX:CATALOGNUMBER'                                'TZ 7321'
'TXXX:MusicBrainz Album Artist Id'                  '7ec4a553-73e5-4c0d-a071-a82b83a309e6'
'TXXX:MusicBrainz Album Id'                         'f7b71772-b499-4653-86f1-f6fcef3ef156'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '7ec4a553-73e5-4c0d-a071-a82b83a309e6'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['free jazz', 'noise', 'jazz', 'avant garde', 'experimental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.45 dB'
'TXXX:replaygain_track_peak'                        '0.924921'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'02c20696-3d56-4501-af21-98fd971198da')

========================== row from database ==========================
                                              'id'  1324166
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/John Zorn - Music For Children/Dreamer Of Dreams.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  347
                                           'genre'  electronic-experimental
                                        'filesize'  5571283
                                           'mtime'  1636916897
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm For Of electronic experimental
                                      'tag_artist'  John Zorn
                                     'tag_release'  Music for Children
                                       'tag_title'  Dreamer of Dreams
                                             'bpm'  101.513
                                    'search_title'  'dreamer':1 'dreams':3 'of':2
                                   'search_artist'  'john':1 'zorn':2
                                  'search_release'  'children':3 'for':2 'music':1
                                     'search_rest'  'electronic':3 'experimental':4 'for':1 'of':2
                                    'search_combo'  'children':8C 'dreamer':1A 'dreams':3A 'electronic':11 'experimental':12 'for':7C,9 'john':4B 'music':6C 'of':2A,10 'zorn':5B
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['free jazz', 'noise', 'jazz', 'avant garde', 'experimental']
                                        'tag_date'  1998
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636916896.6490762  (2021-11-14 20:08:16)
                             'size'  5571283