======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '71'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', "
 "'q-syn-2', 'q-bass-2', 'q-busy-2', 'q-grit-2', 'q-play-1', 'q-chart-1', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '121.994'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '121.994'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '1980'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.463591'

========================== row from database ==========================
                                              'id'  851314
                                            'path'  /data/Music/Bulk/0soundtrack/[tv tunes]/12 - Lonny and Melvin - the Job (Themesong).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  71
                                           'genre'  soundtrack-video-series
                                        'filesize'  1141487
                                           'mtime'  1620329249
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack [tv tunes] 12 Lonny and Melvin the Job (Themesong) soundtrack video series
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  121.994
                                    'search_title'  None
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'and':7 'job':10 'lonny':6 'melvin':8 'series':15 'soundtrack':13 'the':9 'themesong':11,12 'tunes':4,5 'tv':2,3 'video':14
                                    'search_combo'  '0soundtrack':3 'and':9 'job':12 'lonny':8 'melvin':10 'series':17 'soundtrack':15 'the':11 'themesong':13,14 'tunes':6,7 'tv':4,5 'unknown':1B,2B 'video':16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-piano-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620329249.2175722  (2021-05-06 21:27:29)
                             'size'  1141487