======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '53'
                                          'artist'  'Karla Mathiasen'
                                     'text_people'  ''
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                                           'title'  '[charm-songs]'
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  '55'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'loc-northpole'
                                             'bpm'  '110.422'
                                             'key'  '8A'
                                        'acoustid'  '06f8dd7b-d94d-4d59-a73f-b5f383daed77'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            '0'
'COMM:iTunNORM:eng'                                 (' 000000C4 0000010C 0000256A 000035B6 00003E72 00003E72 00004EDE 00005D56 '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 0000075C 000000000023AA14 00000000 00102092 00000000 '
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'COMM:iTunes_CDDB_IDs:eng'                          '55+74BAA4B4DDE292379BAEA7AEAA80332F+4094938'
'TALB' (Album/Movie/Show title)                     ('Inuit: Fifty-Five Historical Recordings: Traditional Music From Greenland '
 '1905-1987')
'TBPM' (BPM (beats per minute))                     '110.422'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'loc-northpole'
'TDOR' (Original release time)                      '1989'
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'iTunes v7.5'
'TIT2' (Title/songname/content description)         '[charm-songs]'
'TKEY' (Initial key)                                '8A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Karla Mathiasen'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Sub Rosa'
'TRCK' (Track number/Position in set)               '11/55'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Mathiasen, Karla'
'TXXX:ASIN'                                         'B000057FQM'
'TXXX:Acoustid Id'                                  '06f8dd7b-d94d-4d59-a73f-b5f383daed77'
'TXXX:Artists'                                      'Karla Mathiasen'
'TXXX:BARCODE'                                      '5411867111153'
'TXXX:CATALOGNUMBER'                                'SR115'
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'TXXX:MusicBrainz Album Status'                     'official'
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'TXXX:MusicBrainz Release Group Id'                 'a69bcbb6-42eb-3cbc-9d7b-11366fdaad52'
'TXXX:MusicBrainz Release Track Id'                 '75730bec-5ea7-3067-bdae-79c62c9a478e'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:originalyear'                                 '1989'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+4.27 dB'
'TXXX:replaygain_track_peak'                        '0.868030'
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========================== row from database ==========================
                                              'id'  660464
                                            'path'  /data/Music/Bulk/00localcharacter/55 Historical Recordings/11 East Greenland _ Karla Mathiasen.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  53
                                           'genre'  loc-northpole
                                        'filesize'  1091582
                                           'mtime'  1621629622
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 55 11 East _ loc northpole
                                      'tag_artist'  Karla Mathiasen
                                     'tag_release'  Inuit: Fifty-Five Historical Recordings: Traditional Music From Greenland 1905-1987
                                       'tag_title'  [charm-songs]
                                             'bpm'  110.422
                                    'search_title'  'charm':1 'charmsongs':3 'songs':2
                                   'search_artist'  'karla':1 'mathiasen':2
                                  'search_release'  '1905':13 '19051987':15 '1987':14 'fifty':3 'fiftyfive':5 'five':4 'from':11 'greenland':12 'historical':6 'inuit':1,2 'music':10 'recordings':7,8 'traditional':9
                                     'search_rest'  '55':1 'east':2 'loc':3 'northpole':4
                                    'search_combo'  '1905':18C '19051987':20C '1987':19C '55':21 'charm':1A 'charmsongs':3A 'east':22 'fifty':8C 'fiftyfive':10C 'five':9C 'from':16C 'greenland':17C 'historical':11C 'inuit':6C,7C 'karla':4B 'loc':23 'mathiasen':5B 'music':15C 'northpole':24 'recordings':12C,13C 'songs':2A 'traditional':14C
                                    'tag_tracknum'  11
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621629622.3662424  (2021-05-21 22:40:22)
                             'size'  1091582