======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '40'
                                          'artist'  'position normal'
                                     'text_people'  ''
                                         'release'  'position normal'
                                           'title'  'music knowledge'
                                           'quals'  ("['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['collage', 'noise', 'electronic', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '21'
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '124.2'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         ['0',
 ' 000002E8 00000417 0000353F 000048DD 000094AC 000076E0 000049F6 00004D5F '
 '00008F78 000076E0',
 ' 00000000 00000210 00000900 00000000001B2AF0 00000000 00188DB7 00000000 '
 '00000000 00000000 00000000 00000000 00000000']
'COMM:iTunes_CDDB_1:eng'                            '210A7615+201072+21+150+9660+23309+38417+47894+59822+65156+74783+77811+83993+94918+100436+107948+120918+129973+142106+150526+160267+166263+171469+180382'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '8'
'PRIV:AverageLevel:{\x08\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x08\x00\x00')
'PRIV:PeakValue:!L\x00\x00'                         PRIV(owner='PeakValue', data=b'!L\x00\x00')
'TALB' (Album/Movie/Show title)                     'position normal'
'TBPM' (BPM (beats per minute))                     '124.2'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2009'
'TENC' (Encoded by)                                 'iTunes 8.2'
'TIT2' (Title/songname/content description)         'music knowledge'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'position normal'
'TRCK' (Track number/Position in set)               '8/21'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['collage', 'noise', 'electronic', 'experimental']
'TXXX:original release date'                        ['2009', '2009']
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.63 dB'
'TXXX:replaygain_track_peak'                        '0.595011'
'TXXX:trackum'                                      '08'

========================== row from database ==========================
                                              'id'  733745
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/position normal/08 08_music knowledge.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  40
                                           'genre'  electronic-unsorted
                                        'filesize'  1619628
                                           'mtime'  1678926825
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 08 08_music electronic unsorted
                                      'tag_artist'  position normal
                                     'tag_release'  position normal
                                       'tag_title'  music knowledge
                                             'bpm'  124.2
                                    'search_title'  'knowledge':2 'music':1
                                   'search_artist'  'normal':2 'position':1
                                  'search_release'  'normal':2 'position':1
                                     'search_rest'  '08':1 'electronic':3 'music':2 'unsorted':4
                                    'search_combo'  '08':7 'electronic':9 'knowledge':2A 'music':1A,8 'normal':4B,6C 'position':3B,5C 'unsorted':10
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HAP-2', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['collage', 'noise', 'electronic', 'experimental']
                                        'tag_date'  2009
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678926824.5591087  (2023-03-16 01:33:44)
                             'size'  1619628