======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '54'
                                          'artist'  'The Simpsons'
                                     'text_people'  ''
                                         'release'  'Songs in the Key of Springfield'
                                           'title'  ('Springfield (Medley): The Simpsons End Credits Theme ("Big Band Vegas" '
 'Version); Gracie Films Logo')
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'funny', 'comedy', 'cartoon', 'tv']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '-1'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '139.2'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:{\x16\x00\x00'                   PRIV(owner='AverageLevel', data=b'{\x16\x00\x00')
'PRIV:PeakValue:!}\x00\x00'                         PRIV(owner='PeakValue', data=b'!}\x00\x00')
'TALB' (Album/Movie/Show title)                     'Songs in the Key of Springfield'
'TBPM' (BPM (beats per minute))                     '139.2'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         ('Springfield (Medley): The Simpsons End Credits Theme ("Big Band Vegas" '
 'Version); Gracie Films Logo')
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Simpsons'
'TRCK' (Track number/Position in set)               '8/-1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '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'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.12 dB'
'TXXX:replaygain_track_peak'                        '0.582388'

========================== row from database ==========================
                                              'id'  1326509
                                            'path'  /data/Music/Bulk/00spent/The Simpsons - Songs in the Key of Springfield - Childrens Music/The Simpsons - Springfield (Medley)_ The Simpsons End Credits Theme (_Big Band Vegas_ Version)_ G.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  54
                                           'genre'  soundtrack-video
                                        'filesize'  1317789
                                           'mtime'  1678463979
                                   'redo_metaread'  0
                                        'rest_str'   00spent Childrens Music (Medley)_ (_Big Vegas_ Version)_ soundtrack video
                                      'tag_artist'  The Simpsons
                                     'tag_release'  Songs in the Key of Springfield
                                       'tag_title'  Springfield (Medley): The Simpsons End Credits Theme ("Big Band Vegas" Version); Gracie Films Logo
                                             'bpm'  139.2
                                    'search_title'  'band':11 'big':9,10 'credits':7 'end':6 'films':16 'gracie':15 'logo':17 'medley':2,3 'simpsons':5 'springfield':1 'the':4 'theme':8 'vegas':12 'version':13,14
                                   'search_artist'  'simpsons':2 'the':1
                                  'search_release'  'in':2 'key':4 'of':5 'songs':1 'springfield':6 'the':3
                                     'search_rest'  '00spent':1 'big':6,7 'childrens':2 'medley':4,5 'music':3 'soundtrack':11 'vegas':8 'version':9,10 'video':12
                                    'search_combo'  '00spent':26 'band':11A 'big':9A,10A,31,32 'childrens':27 'credits':7A 'end':6A 'films':16A 'gracie':15A 'in':21C 'key':23C 'logo':17A 'medley':2A,3A,29,30 'music':28 'of':24C 'simpsons':5A,19B 'songs':20C 'soundtrack':36 'springfield':1A,25C 'the':4A,18B,22C 'theme':8A 'vegas':12A,33 'version':13A,14A,34,35 'video':37
                                    'tag_tracknum'  8
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-3', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['soundtrack', 'funny', 'comedy', 'cartoon', 'tv']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678463979.3284352  (2023-03-10 16:59:39)
                             'size'  1317789