======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '43'
                                          'artist'  'The Simpsons'
                                     'text_people'  ''
                                         'release'  'Go Simpsonic With The Simpsons'
                                           'title'  "'The Simpsons' End Credits Theme (Jazz Quartet Version)"
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-2', "
 "'Q-PLAY-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'Q-PIANO-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-2', 'q-vocals-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'funny', 'comedy', 'cartoon', 'tv']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '34'
                                      'tracktotal'  ''
                                            'date'  '1980'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '143.112'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Go Simpsonic With The Simpsons'
'TBPM' (BPM (beats per minute))                     '143.112'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '1980'
'TIT2' (Title/songname/content description)         "'The Simpsons' End Credits Theme (Jazz Quartet Version)"
'TKEY' (Initial key)                                '3A'
'TLEN' (Length)                                     '43075'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'The Simpsons'
'TRCK' (Track number/Position in set)               '34'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'funny', 'comedy', 'cartoon', 'tv']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.48 dB'
'TXXX:replaygain_track_peak'                        '0.670619'

========================== row from database ==========================
                                              'id'  1502255
                                            'path'  /data/Music/Bulk/0soundtrack/[tv tunes]/34 - _The Simpsons_ End Credits Theme (Jazz Quartet Version).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  43
                                           'genre'  soundtrack-video-series
                                        'filesize'  690048
                                           'mtime'  1620329254
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack [tv tunes] 34 _The Simpsons_ soundtrack video series
                                      'tag_artist'  The Simpsons
                                     'tag_release'  Go Simpsonic With The Simpsons
                                       'tag_title'  'The Simpsons' End Credits Theme (Jazz Quartet Version)
                                             'bpm'  143.112
                                    'search_title'  'credits':6 'end':5 'jazz':8,9 'quartet':10 'simpsons':3,4 'the':1,2 'theme':7 'version':11,12
                                   'search_artist'  'simpsons':2 'the':1
                                  'search_release'  'go':1 'simpsonic':2 'simpsons':5 'the':4 'with':3
                                     'search_rest'  '0soundtrack':1 '34':6 'series':11 'simpsons':8 'soundtrack':9 'the':7 'tunes':4,5 'tv':2,3 'video':10
                                    'search_combo'  '0soundtrack':20 '34':25 'credits':6A 'end':5A 'go':15C 'jazz':8A,9A 'quartet':10A 'series':30 'simpsonic':16C 'simpsons':3A,4A,14B,19C,27 'soundtrack':28 'the':1A,2A,13B,18C,26 'theme':7A 'tunes':23,24 'tv':21,22 'version':11A,12A 'video':29 'with':17C
                                    'tag_tracknum'  34
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-3', 'q-other-2', 'Q-PLAY-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'funny', 'comedy', 'cartoon', 'tv']
                                        'tag_date'  1980
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620329253.796366  (2021-05-06 21:27:33)
                             'size'  690048