======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '92'
                                          'artist'  'Carl Stalling'
                                     'text_people'  ''
                                         'release'  'Carl Stalling Project, Vol. 2: More Music from Warner Bros. Cartoons 1929-1957'
                                           'title'  'Variations on Johann Strauss'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'Q-LOCALNESS-2', 'q-syn-1', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'instrumental', 'classical', 'cartoon music', 'cartoon']"
                                     'discogstags'  "['stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '24'
                                      'tracktotal'  ''
                                            'date'  '1995'
                                        'comments'  ''
                                           'genre'  'soundtrack-video-series'
                                             'bpm'  '121.6'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Carl Stalling Project, Vol. 2: More Music from Warner Bros. Cartoons 1929-1957'
'TBPM' (BPM (beats per minute))                     '121.6'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video-series'
'TDRC' (Recording time)                             '1995'
'TIT2' (Title/songname/content description)         'Variations on Johann Strauss'
'TKEY' (Initial key)                                '8B'
'TLEN' (Length)                                     '92447'
'TPE1' (Lead performer(s)/Soloist(s))               'Carl Stalling'
'TRCK' (Track number/Position in set)               '24'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'stage & screen'
'TXXX:lastfmtags'                                   ['soundtrack', 'instrumental', 'classical', 'cartoon music', 'cartoon']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.80 dB'
'TXXX:replaygain_track_peak'                        '0.503637'

========================== row from database ==========================
                                              'id'  724208
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Carl Stalling Project： More Music From Warner Bros. Cartoons 1939-1957, Vol. 2 [192k]/24 - Variations On Johann Strauss.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  92
                                           'genre'  soundtrack-video-series
                                        'filesize'  2232738
                                           'mtime'  1637785061
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Project： From 1939 1957, [192k] 24 On soundtrack video series
                                      'tag_artist'  Carl Stalling
                                     'tag_release'  Carl Stalling Project, Vol. 2: More Music from Warner Bros. Cartoons 1929-1957
                                       'tag_title'  Variations on Johann Strauss
                                             'bpm'  121.6
                                    'search_title'  'johann':3 'on':2 'strauss':4 'variations':1
                                   'search_artist'  'carl':1 'stalling':2
                                  'search_release'  '1929':16 '19291957':18 '1957':17 '2':7,8 'bros':13,14 'carl':1 'cartoons':15 'from':11 'more':9 'music':10 'project':3,4 'stalling':2 'vol':5,6 'warner':12
                                     'search_rest'  '192k':8,9 '1939':5 '1957':6,7 '24':10 'from':4 'on':11 'project':1,2,3 'series':14 'soundtrack':12 'video':13
                                    'search_combo'  '1929':22C '19291957':24C '192k':32,33 '1939':29 '1957':23C,30,31 '2':13C,14C '24':34 'bros':19C,20C 'carl':5B,7C 'cartoons':21C 'from':17C,28 'johann':3A 'more':15C 'music':16C 'on':2A,35 'project':9C,10C,25,26,27 'series':38 'soundtrack':36 'stalling':6B,8C 'strauss':4A 'variations':1A 'video':37 'vol':11C,12C 'warner':18C
                                    'tag_tracknum'  24
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['soundtrack', 'instrumental', 'classical', 'cartoon music', 'cartoon']
                                        'tag_date'  1995
                                     'discogstags'  ['stage & screen']

============================== file details ==============================
                                           'mtime'  1637785060.6162312  (2021-11-24 21:17:40)
                             'size'  2232738