======================== unified (from filesystem) ========================
                                         'bitrate'  '224.0'
                                        'duration'  '237'
                                          'artist'  'Unkle'
                                     'text_people'  ''
                                         'release'  'Psyence Fiction'
                                           'title'  'The Knock [drums Of Death Part II]'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['electronica', 'electronic', 'downtempo', 'trip hop', 'alternative']"
                                     'discogstags'  "['hip hop', 'non-music', 'trip hop', 'promotional']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1998'
                                        'comments'  ''
                                           'genre'  'electronic-trip hop or downtempo or acid jazz'
                                             'bpm'  '125.160'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00001439 000000F3 00010D54'
'COMM:iTunNORM:eng'                                 (' 00001439 000000F3 00010D54 00002461 00019C8D 00017268 0000806A 00007FFA '
 '00030282 00036E43')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000009B0 00000000009F8BC0 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'TALB' (Album/Movie/Show title)                     'Psyence Fiction'
'TBPM' (BPM (beats per minute))                     '125.160'
'TCON' (Content type, a.k.a. Genre)                 'electronic-trip hop or downtempo or acid jazz'
'TDRC' (Recording time)                             '1998'
'TENC' (Encoded by)                                 'iTunes v6.0.1'
'TIT2' (Title/songname/content description)         'The Knock [drums Of Death Part II]'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Unkle'
'TRCK' (Track number/Position in set)               '9'
'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:discogstags'                                  ['hip hop', 'non-music', 'trip hop', 'promotional']
'TXXX:lastfmtags'                                   ['electronica', 'electronic', 'downtempo', 'trip hop', 'alternative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.15 dB'
'TXXX:replaygain_track_peak'                        '0.506058'

========================== row from database ==========================
                                              'id'  1289801
                                            'path'  /data/Music/Bulk/00poprockelectronic/00trip/UNKLE/Psyence Fiction/09 The Knock [drums Of Death Part II].mp3
                                         'working'  None
                                         'bitrate'  224
                                    'duration_sec'  237
                                           'genre'  electronic-trip hop or downtempo or acid jazz
                                        'filesize'  6643840
                                           'mtime'  1636911037
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00trip UNKLE 09 electronic trip hop or downtempo or acid jazz
                                      'tag_artist'  Unkle
                                     'tag_release'  Psyence Fiction
                                       'tag_title'  The Knock [drums Of Death Part II]
                                             'bpm'  125.16
                                    'search_title'  'death':6 'drums':3,4 'ii':8,9 'knock':2 'of':5 'part':7 'the':1
                                   'search_artist'  'unkle':1
                                  'search_release'  'fiction':2 'psyence':1
                                     'search_rest'  '00poprockelectronic':1 '00trip':2 'acid':9 'downtempo':8 'electronic':4 'hop':6 'jazz':10 'or':7 'trip':5 'unkle':3
                                    'search_combo'  '00poprockelectronic':13 '00trip':14 'acid':21 'death':6A 'downtempo':20 'drums':3A,4A 'electronic':16 'fiction':12C 'hop':18 'ii':8A,9A 'jazz':22 'knock':2A 'of':5A 'or':19 'part':7A 'psyence':11C 'the':1A 'trip':17 'unkle':10B,15
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['electronica', 'electronic', 'downtempo', 'trip hop', 'alternative']
                                        'tag_date'  1998
                                     'discogstags'  ['hip hop', 'non-music', 'trip hop', 'promotional']

============================== file details ==============================
                                           'mtime'  1636911036.8619435  (2021-11-14 18:30:36)
                             'size'  6643840