======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '133'
                                          'artist'  'The Beatles'
                                     'text_people'  ''
                                         'release'  'a hrad day4s night'
                                           'title'  'any time at all'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['pop', 'rock', '60s', 'british', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '141.809'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'a hrad day4s night'
'TBPM' (BPM (beats per minute))                     '141.809'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '1964'
'TIT2' (Title/songname/content description)         'any time at all'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Beatles'
'TRCK' (Track number/Position in set)               '08'
'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:lastfmtags'                                   ['pop', 'rock', '60s', 'british', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.399327'

========================== row from database ==========================
                                              'id'  1525431
                                            'path'  /data/Music/Bulk/00poprockelectronic/Beatles/_64-a hard day_s night/The Beatles - Any Time at all.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  133
                                           'genre'  rock-cppex-classic
                                        'filesize'  2669767
                                           'mtime'  1636039028
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic _64 hard day_s Any Time rock cppex classic
                                      'tag_artist'  The Beatles
                                     'tag_release'  a hrad day4s night
                                       'tag_title'  any time at all
                                             'bpm'  141.809
                                    'search_title'  'all':4 'any':1 'at':3 'time':2
                                   'search_artist'  'beatles':2 'the':1
                                  'search_release'  'a':1 'day4s':3 'hrad':2 'night':4
                                     'search_rest'  '00poprockelectronic':1 '64':2 'any':6 'classic':10 'cppex':9 'day':4 'hard':3 'rock':8 's':5 'time':7
                                    'search_combo'  '00poprockelectronic':11 '64':12 'a':7C 'all':4A 'any':1A,16 'at':3A 'beatles':6B 'classic':20 'cppex':19 'day':14 'day4s':9C 'hard':13 'hrad':8C 'night':10C 'rock':18 's':15 'the':5B 'time':2A,17
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['pop', 'rock', '60s', 'british', 'classic rock']
                                        'tag_date'  1964
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636039028.2267976  (2021-11-04 16:17:08)
                             'size'  2669767