======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '137'
                                          'artist'  'Sigur Rós'
                                     'text_people'  ''
                                         'release'  'Takk...'
                                           'title'  'Með blóðnasir'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'icelandic', 'post rock', 'ambient']"
                                     'discogstags'  "['rock', 'post rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '11'
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '140'
                                             'key'  '1B'
                                        'acoustid'  'd8f52fc8-ea72-455e-8e69-b00f1e7bb532'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Takk...'
'TBPM' (BPM (beats per minute))                     '140'
'TCON' (Content type, a.k.a. Genre)                 ['electronic', 'electronic']
'TDOR' (Original release time)                      '2005'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Með blóðnasir'
'TKEY' (Initial key)                                '1B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Sigur Rós'
'TPE2' (Band/orchestra/accompaniment)               'Sigur Rós'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'EMI'
'TRCK' (Track number/Position in set)               '4/11'
'TSO2'                                              'Sigur Rós'
'TSOP' (Performer sort order)                       'Sigur Rós'
'TSRC' (ISRC (international standard recording code))  'GBKEE0500004'
'TXXX:Acoustid Id'                                  'd8f52fc8-ea72-455e-8e69-b00f1e7bb532'
'TXXX:Artists'                                      'Sigur Rós'
'TXXX:BARCODE'                                      '5099969546822'
'TXXX:CATALOGNUMBER'                                '695 4682'
'TXXX:MusicBrainz Album Artist Id'                  'f6f2326f-6b25-4170-b89d-e235b25508e8'
'TXXX:MusicBrainz Album Id'                         'eb03ba58-e017-492f-8d50-5e016075f2bd'
'TXXX:MusicBrainz Album Release Country'            'XE'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        'f6f2326f-6b25-4170-b89d-e235b25508e8'
'TXXX:MusicBrainz Release Group Id'                 '47d8e9e2-dc13-3d94-afee-1f8c38cec091'
'TXXX:MusicBrainz Release Track Id'                 '1e70f0a1-7f9f-4ffa-a6da-7cf2c7fd5d55'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['rock', 'post rock']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'icelandic', 'post rock', 'ambient']
'TXXX:originalyear'                                 '2005'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.49 dB'
'TXXX:replaygain_track_peak'                        '0.464493'
'TXXX:ÿþuMisMcgaciD ta'                             'agAAEMabgItxycHRUWhoXgaQYAgEG4fpDm3QGkV9VHiYbamkvAgdHaUM3ODX6YWROGhACeA0Io1EBNhMNAgCHfc7M1Op6910IAgAKaAJl93y6on6IPzEU59lAchCyAUAb0ltAIkYdX3impY5O73qCKexZgmKWYQua6girgrf6DAJzJgJO7xEYxfAI9rHjYYIVJg=k'
'TXXX:ÿþuMisMcgaciF niegprirtnA'                    '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Q'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'2333884e-0aa5-44a3-8a0f-80563adbb735')

========================== row from database ==========================
                                              'id'  1337020
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sigur Ros/sigur ros - takk - 04 - med blodnasir.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  137
                                           'genre'  electronic
                                        'filesize'  3422493
                                           'mtime'  1636914418
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Ros sigur ros takk 04 med blodnasir electronic
                                      'tag_artist'  Sigur Rós
                                     'tag_release'  Takk...
                                       'tag_title'  Með blóðnasir
                                             'bpm'  140.0
                                    'search_title'  'blodnasir':4 'bloðnasir':3 'med':2 'með':1
                                   'search_artist'  'ros':2,3 'sigur':1
                                  'search_release'  'takk':1,2
                                     'search_rest'  '00poprockelectronic':1 'blodnasir':6 'electronic':7 'med':5 'ros':2 'sigur':3 'takk':4
                                    'search_combo'  '00poprockelectronic':10 'blodnasir':4A,15 'bloðnasir':3A 'electronic':16 'med':2A,14 'með':1A 'ros':6B,7B,11 'sigur':5B,12 'takk':8C,9C,13
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-3', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'icelandic', 'post rock', 'ambient']
                                        'tag_date'  2008
                                     'discogstags'  ['rock', 'post rock']

============================== file details ==============================
                                           'mtime'  1636914417.586229  (2021-11-14 19:26:57)
                             'size'  3422493