======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '126'
                                          'artist'  'Cult of Luna'
                                     'text_people'  ''
                                         'release'  'Vertikal'
                                           'title'  'The One'
                                           '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-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['sludge', 'post rock', 'doom metal', 'post metal', 'progressive metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '10'
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'eid-metal-sludge or grind'
                                             'bpm'  '86.994'
                                             'key'  '6B'
                                        'acoustid'  '54f628cc-cb0a-4eb8-bd8a-4bab2106c8a3'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Vertikal'
'TBPM' (BPM (beats per minute))                     '86.994'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-sludge or grind'
'TDOR' (Original release time)                      '2013'
'TDRC' (Recording time)                             '2013-01-25'
'TIT2' (Title/songname/content description)         'The One'
'TKEY' (Initial key)                                '6B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Cult of Luna'
'TPE2' (Band/orchestra/accompaniment)               'Cult of Luna'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Indie Recordings'
'TRCK' (Track number/Position in set)               '1/10'
'TSO2'                                              'Cult of Luna'
'TSOP' (Performer sort order)                       'Cult of Luna'
'TXXX:ASIN'                                         'B00AANGIOE'
'TXXX:Acoustid Id'                                  '54f628cc-cb0a-4eb8-bd8a-4bab2106c8a3'
'TXXX:BARCODE'                                      '7090014387160'
'TXXX:CATALOGNUMBER'                                'INDIE094CDL'
'TXXX:MusicBrainz Album Artist Id'                  'd347406f-839d-4423-9a28-188939282afa'
'TXXX:MusicBrainz Album Id'                         '683516c1-2389-4061-81a8-fc6fa3576d9d'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'd347406f-839d-4423-9a28-188939282afa'
'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:lastfmtags'                                   ['sludge', 'post rock', 'doom metal', 'post metal', 'progressive metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.26 dB'
'TXXX:replaygain_track_peak'                        '0.545878'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'14056048-592e-414d-9f42-ac2cea731d18')

========================== row from database ==========================
                                              'id'  1399454
                                            'path'  /data/Music/Bulk/00dwimp/00metal/Cult of Luna - 2013 - Vertikal/01 - The One.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  126
                                           'genre'  eid-metal-sludge or grind
                                        'filesize'  5108289
                                           'mtime'  1620310838
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal 2013 01 eid metal sludge or grind
                                      'tag_artist'  Cult of Luna
                                     'tag_release'  Vertikal
                                       'tag_title'  The One
                                             'bpm'  86.994
                                    'search_title'  'one':2 'the':1
                                   'search_artist'  'cult':1 'luna':3 'of':2
                                  'search_release'  'vertikal':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2013':3 'eid':4 'grind':8 'metal':5 'or':7 'sludge':6
                                    'search_combo'  '00dwimp':7 '00metal':8 '2013':9 'cult':3B 'eid':10 'grind':14 'luna':5B 'metal':11 'of':4B 'one':2A 'or':13 'sludge':12 'the':1A 'vertikal':6C
                                    'tag_tracknum'  1
                                      'num_images'  1
                                             'key'  6B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-2', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['sludge', 'post rock', 'doom metal', 'post metal', 'progressive metal']
                                        'tag_date'  2013
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620310837.8999336  (2021-05-06 16:20:37)
                             'size'  5108289