======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '218'
                                          'artist'  'String Quartet'
                                     'text_people'  ''
                                         'release'  'In The Chamber with Linkin Park'
                                           'title'  'Somewhere I Belong'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'classical', 'covers', 'tribute', 'cover', 'strings']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments;set-cover or covered'
                                             'bpm'  '106.587'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00001236 0000135F 000058F2'
'COMM:iTunNORM:eng'                                 (' 00001236 0000135F 000058F2 00005AAA 000250BE 000250BE 00008000 00008000 '
 '0001908B 0000D455')
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'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
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'TALB' (Album/Movie/Show title)                     'In The Chamber with Linkin Park'
'TBPM' (BPM (beats per minute))                     '106.587'
'TCON' (Content type, a.k.a. Genre)                 ['prerock-classical or classical instruments', 'set-cover or covered']
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Somewhere I Belong'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The String quartet tribute to linkin park'
'TPE2' (Band/orchestra/accompaniment)               'String Quartet'
'TPUB' (Publisher)                                  'Vitamin'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'classical', 'covers', 'tribute', 'cover', 'strings']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.12 dB'
'TXXX:replaygain_track_peak'                        '0.357507'

========================== row from database ==========================
                                              'id'  1335234
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/track 08_somewhere i belong.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  218
                                           'genre'  prerock-classical or classical instruments;set-cover or covered
                                        'filesize'  3494907
                                           'mtime'  1637329822
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] track 08_somewhere belong prerock classical or classical instruments;set cover or covered
                                      'tag_artist'  String Quartet
                                     'tag_release'  In The Chamber with Linkin Park
                                       'tag_title'  Somewhere I Belong
                                             'bpm'  106.587
                                    'search_title'  'belong':3 'i':2 'somewhere':1
                                   'search_artist'  'quartet':2 'string':1
                                  'search_release'  'chamber':3 'in':1 'linkin':5 'park':6 'the':2 'with':4
                                     'search_rest'  '00poprockelectronic':1 '08':8 'belong':10 'classical':12 'cover':18 'covered':19 'files':5,6 'instruments':14,16 'loose':3,4 'or':13 'prerock':11 'set':15,17 'somewhere':9 'track':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':12 '08':19 'belong':3A,21 'chamber':8C 'classical':23 'cover':29 'covered':30 'files':16,17 'i':2A 'in':6C 'instruments':25,27 'linkin':10C 'loose':14,15 'or':24 'park':11C 'prerock':22 'quartet':5B 'set':26,28 'somewhere':1A,20 'string':4B 'the':7C 'track':18 'unsorted':13 'with':9C
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-4', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['instrumental', 'classical', 'covers', 'tribute', 'cover', 'strings']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329821.7205215  (2021-11-19 14:50:21)
                             'size'  3494907