======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '478'
                                          'artist'  'Queen'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Another One Bites the Dust(Ced'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'rock-cppex-classic'
                                             'bpm'  '124.929'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '124.929'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex-classic'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'Another One Bites the Dust(Ced'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Queen'
'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:lastfmtags'                                   ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
'TXXX:q-bass'                                       '3'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.48 dB'
'TXXX:replaygain_track_peak'                        '0.392851'

========================== row from database ==========================
                                              'id'  1416533
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Queen/cifsb2c5.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  478
                                           'genre'  rock-cppex-classic
                                        'filesize'  19146450
                                           'mtime'  1636038820
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy cifsb2c5 rock cppex classic
                                      'tag_artist'  Queen
                                     'tag_release'  None
                                       'tag_title'  Another One Bites the Dust(Ced
                                             'bpm'  124.929
                                    'search_title'  'another':1 'bites':3 'ced':6 'dust':5 'dustced':7 'one':2 'the':4
                                   'search_artist'  'queen':1
                                  'search_release'  
                                     'search_rest'  'cifsb2c5':2 'classic':5 'classicprogpsy':1 'cppex':4 'rock':3
                                    'search_combo'  'another':1A 'bites':3A 'ced':6A 'cifsb2c5':10 'classic':13 'classicprogpsy':9 'cppex':12 'dust':5A 'dustced':7A 'one':2A 'queen':8B 'rock':11 'the':4A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', '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-3', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'glam rock', 'rock', 'hard rock', 'classic rock']
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636038819.8432872  (2021-11-04 16:13:39)
                             'size'  19146450