======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '232'
                                          'artist'  '(həd) Planet Earth'
                                     'text_people'  ''
                                         'release'  'Blackout'
                                           'title'  'Blackout'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-UNU-2', 'Q-JZFKS-1', 'Q-HAP-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-4', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-4', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk', 'punk rock', 'rapcore', 'metal', 'nu metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '16'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'eid-metal-nu'
                                             'bpm'  '96'
                                             'key'  '3B'
                                        'acoustid'  '1e234887-c112-4510-bd2b-c160fe1f3861'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Blackout'
'TBPM' (BPM (beats per minute))                     '96'
'TCON' (Content type, a.k.a. Genre)                 'eid-metal-nu'
'TDOR' (Original release time)                      '2003'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Blackout'
'TKEY' (Initial key)                                '3B'
'TMED' (Media type)                                 'Enhanced CD'
'TPE1' (Lead performer(s)/Soloist(s))               '(həd) Planet Earth'
'TPE2' (Band/orchestra/accompaniment)               '(həd) Planet Earth'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Music for Nations'
'TRCK' (Track number/Position in set)               '4/16'
'TSO2'                                              'hed p.e.'
'TSOP' (Performer sort order)                       'hed p.e.'
'TSRC' (ISRC (international standard recording code))  'USJI10300004'
'TXXX:Acoustid Id'                                  '1e234887-c112-4510-bd2b-c160fe1f3861'
'TXXX:Artists'                                      '(həd) Planet Earth'
'TXXX:BARCODE'                                      '5016583128326'
'TXXX:CATALOGNUMBER'                                'CDMFN 283'
'TXXX:MusicBrainz Album Artist Id'                  '19516266-e5d9-4774-b749-812bb76a6559'
'TXXX:MusicBrainz Album Id'                         '142eda16-9e7b-4ee3-9710-4783f7909adc'
'TXXX:MusicBrainz Album Release Country'            'GB'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '19516266-e5d9-4774-b749-812bb76a6559'
'TXXX:MusicBrainz Release Group Id'                 '0af713b2-5294-337a-8708-17ffac913943'
'TXXX:MusicBrainz Release Track Id'                 '35a5565a-e6a5-366e-8972-55073cdff4c6'
'TXXX:Q-HAP'                                        '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '4'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['punk', 'punk rock', 'rapcore', 'metal', 'nu metal']
'TXXX:originalyear'                                 '2003'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '4'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.38 dB'
'TXXX:replaygain_track_peak'                        '0.409727'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'baffd435-fdec-498d-adf4-1b4a4a1c6a97')

========================== row from database ==========================
                                              'id'  1395898
                                            'path'  /data/Music/Bulk/00dwimp/00metal/(Hed)P.E/Blackout [2003]/(Hed) PE - Track 04.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  232
                                           'genre'  eid-metal-nu
                                        'filesize'  5693411
                                           'mtime'  1620311034
                                   'redo_metaread'  0
                                        'rest_str'   00dwimp 00metal (Hed)P.E [2003] (Hed) PE Track 04 eid metal nu
                                      'tag_artist'  (həd) Planet Earth
                                     'tag_release'  Blackout
                                       'tag_title'  Blackout
                                             'bpm'  96.0
                                    'search_title'  'blackout':1
                                   'search_artist'  'earth':4 'həd':1,2 'planet':3
                                  'search_release'  'blackout':1
                                     'search_rest'  '00dwimp':1 '00metal':2 '2003':7,8 'e':5 'eid':13 'hed':3,9,10 'hedpe':6 'metal':14 'nu':15 'p':4 'pe':11 'track':12
                                    'search_combo'  '00dwimp':7 '00metal':8 '2003':13,14 'blackout':1A,6C 'e':11 'earth':5B 'eid':19 'hed':9,15,16 'hedpe':12 'həd':2B,3B 'metal':20 'nu':21 'p':10 'pe':17 'planet':4B 'track':18
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-4', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-2', 'Q-HAP-1', 'q-bass-4', 'q-grit-4']
                                      'lastfmtags'  ['punk', 'punk rock', 'rapcore', 'metal', 'nu metal']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620311034.4469404  (2021-05-06 16:23:54)
                             'size'  5693411