======================== unified (from filesystem) ========================
                                         'bitrate'  '183.208'
                                        'duration'  '160'
                                          'artist'  'Björk Guðmundsdóttir & Tríó Guðmundar Ingólfssonar'
                                     'text_people'  ''
                                         'release'  'Gling-Gló'
                                           'title'  'Bílavísur'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-LOCALNESS-3', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-1', 'q-vocals-3', 'q-mixbeat-1', "
 "'Q-PIANO-3']")
                                      'lastfmtags'  "['icelandic', 'blues', 'jazz', 'female vocalists', 'iceland']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  '16'
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted;ifs-songwriter-eos;loc-iceland'
                                             'bpm'  '84'
                                             'key'  '8B'
                                        'acoustid'  'c213e5ac-7d55-460b-afb4-074f44c893bb'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Gling-Gló'
'TBPM' (BPM (beats per minute))                     '84'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-unsorted', 'ifs-songwriter-eos', 'loc-iceland']
'TDOR' (Original release time)                      '1990'
'TDRC' (Recording time)                             '2003'
'TENC' (Encoded by)                                 'SoundJam MP'
'TIPL' (Involved people list)                       TIPL(encoding=<Encoding.UTF16: 1>, people=[['tambourine', 'Guðmundur Ingólfsson'], ['piano', 'Guðmundur Ingólfsson'], ['double bass', 'Þórður Högnason'], ['bell', 'Guðmundur Steingrímsson'], ['maracas', 'Guðmundur Steingrímsson'], ['harmonica', 'Björk Guðmundsdóttir'], ['drums (drum set)', 'Guðmundur Steingrímsson']])
'TIT2' (Title/songname/content description)         'Bílavísur'
'TKEY' (Initial key)                                '8B'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Björk Guðmundsdóttir & Tríó Guðmundar Ingólfssonar'
'TPE2' (Band/orchestra/accompaniment)               'Björk Guðmundsdóttir & Tríó Guðmundar Ingólfssonar'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'One Little Indian Records (US)'
'TRCK' (Track number/Position in set)               '10/16'
'TSO2'                                              'Björk & Guðmundar Ingólfssonar, Tríó'
'TSOP' (Performer sort order)                       'Björk & Guðmundar Ingólfssonar, Tríó'
'TSRC' (ISRC (international standard recording code))  'GBBTF0300200'
'TXXX:ASIN'                                         'B0000AYL44'
'TXXX:Acoustid Id'                                  'c213e5ac-7d55-460b-afb4-074f44c893bb'
'TXXX:Artists'                                      'Björk Guðmundsdóttir/Tríó Guðmundar Ingólfssonar'
'TXXX:BARCODE'                                      '827954006120'
'TXXX:CATALOGNUMBER'                                'OLI 061'
'TXXX:MusicBrainz Album Artist Id'                  '87c5dedd-371d-4a53-9f7f-80522fb7f3cb/86e985e5-b755-4b93-86f2-f4f9aaaaebca'
'TXXX:MusicBrainz Album Id'                         '460a13d9-3795-3106-92ee-a43f3230fd35'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '87c5dedd-371d-4a53-9f7f-80522fb7f3cb/86e985e5-b755-4b93-86f2-f4f9aaaaebca'
'TXXX:MusicBrainz Release Group Id'                 '7b0e60ce-ad06-3578-ad5e-5d5ca4353379'
'TXXX:MusicBrainz Release Track Id'                 'dc13705b-59cc-3316-9f93-f900a23d84ee'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['icelandic', 'blues', 'jazz', 'female vocalists', 'iceland']
'TXXX:originalyear'                                 '1990'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.66 dB'
'TXXX:replaygain_track_peak'                        '0.985613'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'35027857-f587-4658-adbe-094699fd522c')

========================== row from database ==========================
                                              'id'  1354863
                                            'path'  /data/Music/Bulk/00poprockelectronic/Bjork/gling glo/Bj_rk - B_lav_sur.mp3
                                         'working'  None
                                         'bitrate'  183
                                    'duration_sec'  160
                                           'genre'  electronic-unsorted;ifs-songwriter-eos;loc-iceland
                                        'filesize'  3775798
                                           'mtime'  1621630130
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Bjork gling glo Bj_rk B_lav_sur electronic unsorted;ifs songwriter eos;loc iceland
                                      'tag_artist'  Björk Guðmundsdóttir & Tríó Guðmundar Ingólfssonar
                                     'tag_release'  Gling-Gló
                                       'tag_title'  Bílavísur
                                             'bpm'  84.0
                                    'search_title'  'bilavisur':1,2
                                   'search_artist'  'bjork':1,2 'gudmundar':8 'gudmundsdottir':4 'guðmundar':7 'guðmundsdottir':3 'ingolfssonar':9,10 'trio':5,6
                                  'search_release'  'gling':1,4 'glingglo':3,6 'glo':2,5
                                     'search_rest'  '00poprockelectronic':1 'b':7 'bj':5 'bjork':2 'electronic':10 'eos':16,18 'gling':3 'glo':4 'iceland':20 'ifs':12,14 'lav':8 'loc':17,19 'rk':6 'songwriter':15 'sur':9 'unsorted':11,13
                                    'search_combo'  '00poprockelectronic':19 'b':25 'bilavisur':1A,2A 'bj':23 'bjork':3B,4B,20 'electronic':28 'eos':34,36 'gling':13C,16C,21 'glingglo':15C,18C 'glo':14C,17C,22 'gudmundar':10B 'gudmundsdottir':6B 'guðmundar':9B 'guðmundsdottir':5B 'iceland':38 'ifs':30,32 'ingolfssonar':11B,12B 'lav':26 'loc':35,37 'rk':24 'songwriter':33 'sur':27 'trio':7B,8B 'unsorted':29,31
                                    'tag_tracknum'  10
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-3', 'Q-PIANO-3', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['icelandic', 'blues', 'jazz', 'female vocalists', 'iceland']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630130.1199467  (2021-05-21 22:48:50)
                             'size'  3775798