======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '533'
                                          'artist'  'Cult of Luna & Julie Christmas'
                                     'text_people'  ''
                                         'release'  'Mariner'
                                           'title'  'Chevron'
                                           '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-3', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['sludge', 'post metal', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  '6'
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'eid-metal-doom or gothic'
                                             'bpm'  '115.589'
                                             'key'  '1A'
                                        'acoustid'  '09ecfba8-20de-468c-80d9-86b8f252bb89'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Mariner'
'TBPM' (BPM (beats per minute))                     '115.589'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-doom or gothic'
'TDOR' (Original release time)                      '2016'
'TDRC' (Recording time)                             '2016-04-08'
'TIT2' (Title/songname/content description)         'Chevron'
'TKEY' (Initial key)                                '1A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Cult of Luna & Julie Christmas'
'TPE2' (Band/orchestra/accompaniment)               'Cult of Luna & Julie Christmas'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Ward Records'
'TRCK' (Track number/Position in set)               '2/6'
'TSO2'                                              'Cult of Luna & Christmas, Julie'
'TSOP' (Performer sort order)                       'Cult of Luna & Christmas, Julie'
'TXXX:Acoustid Id'                                  '09ecfba8-20de-468c-80d9-86b8f252bb89'
'TXXX:BARCODE'                                      '4562387200290'
'TXXX:CATALOGNUMBER'                                'GQCS-90125'
'TXXX:MusicBrainz Album Artist Id'                  'd347406f-839d-4423-9a28-188939282afa/a8af8792-524f-43c2-a6e4-5f4006814858'
'TXXX:MusicBrainz Album Id'                         'd30594d6-9250-4e18-b87a-33e444cfceea'
'TXXX:MusicBrainz Album Release Country'            'JP'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd347406f-839d-4423-9a28-188939282afa/a8af8792-524f-43c2-a6e4-5f4006814858'
'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', 'post metal', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.94 dB'
'TXXX:replaygain_track_peak'                        '0.436551'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'6486ec3c-a5d9-4f36-9d3e-d96ee8eea441')

========================== row from database ==========================
                                              'id'  1263573
                                            'path'  /data/Music/Bulk/00dwimp/Cult of Luna & Julie Christmas - mariner/02 Chevron.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  533
                                           'genre'  eid-metal-doom or gothic
                                        'filesize'  21490862
                                           'mtime'  1620310316
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp mariner 02 eid metal doom or gothic
                                      'tag_artist'  Cult of Luna & Julie Christmas
                                     'tag_release'  Mariner
                                       'tag_title'  Chevron
                                             'bpm'  115.589
                                    'search_title'  'chevron':1
                                   'search_artist'  'christmas':5 'cult':1 'julie':4 'luna':3 'of':2
                                  'search_release'  'mariner':1
                                     'search_rest'  '00dwimp':1 'doom':5 'eid':3 'gothic':7 'mariner':2 'metal':4 'or':6
                                    'search_combo'  '00dwimp':8 'chevron':1A 'christmas':6B 'cult':2B 'doom':12 'eid':10 'gothic':14 'julie':5B 'luna':4B 'mariner':7C,9 'metal':11 'of':3B 'or':13
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-1', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['sludge', 'post metal', 'experimental']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310315.7323887  (2021-05-06 16:11:55)
                             'size'  21490862