======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '143'
                                          'artist'  'Sesame Street'
                                     'text_people'  ''
                                         'release'  'Platinum: All-Time Favorites'
                                           'title'  'Rubber Duckie'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['comedy', 'childrens music', 'kids', 'children', 'brutal death metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  '20'
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'entertaining-tv'
                                             'bpm'  '145.9'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:Songs-DB_Custom1:eng'                         '1990s'
'COMM:Songs-DB_Custom2:eng'                         'Animal Songs; Nostalgia; Parody'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Platinum: All-Time Favorites'
'TBPM' (BPM (beats per minute))                     '145.9'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-tv'
'TDOR' (Original release time)                      '1995'
'TDRC' (Recording time)                             '1995-08-22'
'TIT2' (Title/songname/content description)         'Rubber Duckie'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sesame Street'
'TPE2' (Band/orchestra/accompaniment)               'Sesame Street'
'TPUB' (Publisher)                                  'Sony Wonder'
'TRCK' (Track number/Position in set)               '4/20'
'TSOP' (Performer sort order)                       'Sesame Street'
'TXXX:ALBUMARTISTSORT'                              'Sesame Street'
'TXXX:ASIN'                                         'B000002B8G'
'TXXX:BARCODE'                                      '074646725122'
'TXXX:CATALOGNUMBER'                                'LK 67251'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '059,186'
'TXXX:MusicBrainz Album Artist Id'                  'd68700b6-aae7-478a-b75b-5ea8c6851cd4'
'TXXX:MusicBrainz Album Id'                         '8c281973-3d69-485e-8aca-bf314afd6563'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'compilation'
'TXXX:MusicBrainz Artist Id'                        'd68700b6-aae7-478a-b75b-5ea8c6851cd4'
'TXXX:MusicMagic Data'                              'AgEAA1V6nTCTbLTLhDZQCky5gAGBDIJD8B2nUjJpitToQ4ABgAEAZr3jgWzmSKhygxqAAeLAgcD/N6b1gAHSLBIyFk2sqMc5gAKAAZl6mDC0XoXsGTNONIL7gY6FnPn7o3Ao6of96TiKUIIDCm6455UG5tCpg4LggAHcfJu062zCu4JSvyr+A/lbvw67DI8fgAE='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['comedy', 'childrens music', 'kids', 'children', 'brutal death metal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.03 dB'
'TXXX:replaygain_track_peak'                        '0.444070'

========================== row from database ==========================
                                              'id'  1368215
                                            'path'  /data/Music/Bulk/00spent/Sesame Street/Sesame Street__MBZ;#Sesame Street;#Platinum All-Time Favorites;#04;#Rubber Duckie.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  143
                                           'genre'  entertaining-tv
                                        'filesize'  2294822
                                           'mtime'  1636913910
                                   'redo_metaread'  0
                                        'rest_str'   00spent Street__MBZ;#Sesame Street;#Platinum Favorites;#04;#Rubber entertaining tv
                                      'tag_artist'  Sesame Street
                                     'tag_release'  Platinum: All-Time Favorites
                                       'tag_title'  Rubber Duckie
                                             'bpm'  145.9
                                    'search_title'  'duckie':2 'rubber':1
                                   'search_artist'  'sesame':1 'street':2
                                  'search_release'  'all':3 'alltime':5 'favorites':6 'platinum':1,2 'time':4
                                     'search_rest'  '00spent':1 '04':13,16 'entertaining':18 'favorites':12,15 'mbz':3,6 'platinum':9,11 'rubber':14,17 'sesame':4,7 'street':2,5,8,10 'tv':19
                                    'search_combo'  '00spent':11 '04':23,26 'all':7C 'alltime':9C 'duckie':2A 'entertaining':28 'favorites':10C,22,25 'mbz':13,16 'platinum':5C,6C,19,21 'rubber':1A,24,27 'sesame':3B,14,17 'street':4B,12,15,18,20 'time':8C 'tv':29
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['comedy', 'childrens music', 'kids', 'children', 'brutal death metal']
                                        'tag_date'  1995
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636913910.095645  (2021-11-14 19:18:30)
                             'size'  2294822