======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '213'
                                          'artist'  'Shanghai Sound Unit'
                                     'text_people'  ''
                                         'release'  'China: The Sonic Avant-Garde (Disc 2)'
                                           'title'  'Auctioneers'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['spoken word', 'soundscape', 'experimental vocal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '125.0'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'China: The Sonic Avant-Garde (Disc 2)'
'TBPM' (BPM (beats per minute))                     '125.0'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Auctioneers'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Shanghai Sound Unit'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['spoken word', 'soundscape', 'experimental vocal']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.94 dB'
'TXXX:replaygain_track_peak'                        '0.440741'

========================== row from database ==========================
                                              'id'  1379394
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Wang Changcun - china the sonic avant-garde (disc 2)/10 - shanghai sound unit - auctioneers.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  213
                                           'genre'  electronic-unsorted
                                        'filesize'  5119872
                                           'mtime'  1620586595
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Wang Changcun china the sonic avant garde (disc 10 shanghai sound unit auctioneers electronic unsorted
                                      'tag_artist'  Shanghai Sound Unit
                                     'tag_release'  China: The Sonic Avant-Garde (Disc 2)
                                       'tag_title'  Auctioneers
                                             'bpm'  125.0
                                    'search_title'  'auctioneers':1
                                   'search_artist'  'shanghai':1 'sound':2 'unit':3
                                  'search_release'  '2':10,11 'avant':5 'avantgarde':7 'china':1,2 'disc':8,9 'garde':6 'sonic':4 'the':3
                                     'search_rest'  'auctioneers':13 'avant':6 'changcun':2 'china':3 'disc':8,9 'electronic':14 'garde':7 'shanghai':10 'sonic':5 'sound':11 'the':4 'unit':12 'unsorted':15 'wang':1
                                    'search_combo'  '2':14C,15C 'auctioneers':1A,28 'avant':9C,21 'avantgarde':11C 'changcun':17 'china':5C,6C,18 'disc':12C,13C,23,24 'electronic':29 'garde':10C,22 'shanghai':2B,25 'sonic':8C,20 'sound':3B,26 'the':7C,19 'unit':4B,27 'unsorted':30 'wang':16
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['spoken word', 'soundscape', 'experimental vocal']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620586595.4820976  (2021-05-09 20:56:35)
                             'size'  5119872