======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '237'
                                          'artist'  'George Harrison'
                                     'text_people'  ''
                                         'release'  'Cloud Nine'
                                           'title'  'When We Was Fab'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock', 'singer songwriter', 'pop', 'british', 'classic rock']"
                                     'discogstags'  "['rock', 'pop rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '6'
                                      'tracktotal'  ''
                                            'date'  '1987'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '91.514'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cloud Nine'
'TBPM' (BPM (beats per minute))                     '91.514'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1987'
'TIT2' (Title/songname/content description)         'When We Was Fab'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'George Harrison'
'TRCK' (Track number/Position in set)               '6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['rock', 'pop rock', 'classic rock']
'TXXX:lastfmtags'                                   ['rock', 'singer songwriter', 'pop', 'british', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.62 dB'
'TXXX:replaygain_track_peak'                        '0.559537'

========================== row from database ==========================
                                              'id'  1323483
                                            'path'  /data/Music/Bulk/00poprockelectronic/George Harrison/MBZ;#George Harrison;#Cloud Nine;#06;#When We Was Fab.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  237
                                           'genre'  rock-cppex-classic
                                        'filesize'  3801757
                                           'mtime'  1636039176
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#George Harrison;#Cloud Nine;#06;#When rock cppex classic
                                      'tag_artist'  George Harrison
                                     'tag_release'  Cloud Nine
                                       'tag_title'  When We Was Fab
                                             'bpm'  91.514
                                    'search_title'  'fab':4 'was':3 'we':2 'when':1
                                   'search_artist'  'george':1 'harrison':2
                                  'search_release'  'cloud':1 'nine':2
                                     'search_rest'  '00poprockelectronic':1 '06':11,14 'classic':18 'cloud':7,9 'cppex':17 'george':3,5 'harrison':6,8 'mbz':2,4 'nine':10,13 'rock':16 'when':12,15
                                    'search_combo'  '00poprockelectronic':9 '06':19,22 'classic':26 'cloud':7C,15,17 'cppex':25 'fab':4A 'george':5B,11,13 'harrison':6B,14,16 'mbz':10,12 'nine':8C,18,21 'rock':24 'was':3A 'we':2A 'when':1A,20,23
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock', 'singer songwriter', 'pop', 'british', 'classic rock']
                                        'tag_date'  1987
                                     'discogstags'  ['rock', 'pop rock', 'classic rock']

============================== file details ==============================
                                           'mtime'  1636039176.1076665  (2021-11-04 16:19:36)
                             'size'  3801757