======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '71'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '114.999'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '114.999'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Mp3gain_minmax'                               '090,186'
'TXXX:Mp3gain_undo'                                 '+002,+002,N'
'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:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.54 dB'
'TXXX:replaygain_track_peak'                        '0.644394'

========================== row from database ==========================
                                              'id'  1313339
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Theme - Theme from Muppet Show.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  71
                                           'genre'  soundtrack-video-series
                                        'filesize'  1009494
                                           'mtime'  1678455941
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Theme Theme from Muppet Show soundtrack video series
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  114.999
                                    'search_title'  None
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'files':5,6 'from':8 'loose':3,4 'muppet':9 'series':13 'show':10 'soundtrack':11 'theme':7 'unsorted':2 'video':12
                                    'search_combo'  '00poprockelectronic':3 'files':7,8 'from':10 'loose':5,6 'muppet':11 'series':15 'show':12 'soundtrack':13 'theme':9 'unknown':1B,2B 'unsorted':4 'video':14
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678455940.725618  (2023-03-10 14:45:40)
                             'size'  1009494