======================== unified (from filesystem) ========================
                                         'bitrate'  '209.922'
                                        'duration'  '507'
                                          'artist'  'Laurie Anderson'
                                     'text_people'  'Laurie Anderson'
                                         'release'  'Big Science'
                                           'title'  'O Superman'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'Q-UNU-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  ("['electronic', 'female vocalists', 'avant garde', 'spoken word', "
 "'experimental']")
                                     'discogstags'  "['electronic', 'rock', 'avantgarde', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '06'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-oddness'
                                             'bpm'  '145.7'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Big Science'
'TBPM' (BPM (beats per minute))                     '145.7'
'TCOM' (Composer)                                   'Laurie Anderson'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-oddness'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'O Superman'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Laurie Anderson'
'TPE2' (Band/orchestra/accompaniment)               'Laurie Anderson'
'TPOS' (Part of a set)                              '1'
'TPUB' (Publisher)                                  'Nonesuch'
'TRCK' (Track number/Position in set)               '06'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'rock', 'avantgarde', 'experimental']
'TXXX:lastfmtags'                                   ['electronic', 'female vocalists', 'avant garde', 'spoken word', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.70 dB'
'TXXX:replaygain_track_peak'                        '0.850004'
'WCOM:http://www.amazon.co.uk/gp/redirect.html%3FASIN=B000QCU9QW%26tag=softpointer-20%26lcode=xm2%26cID=2025%26ccmID=165953%26location=/o/ASIN/B000QCU9QW%253FSubscriptionId=0RXJS26C80QSDEB56CR2'  WCOM(url='http://www.amazon.co.uk/gp/redirect.html%3FASIN=B000QCU9QW%26tag=softpointer-20%26lcode=xm2%26cID=2025%26ccmID=165953%26location=/o/ASIN/B000QCU9QW%253FSubscriptionId=0RXJS26C80QSDEB56CR2')

========================== row from database ==========================
                                              'id'  1536489
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Laurie Anderson/1982 - Big Science/Laurie Anderson - Big Science - 06 - O Superman.mp3
                                         'working'  None
                                         'bitrate'  210
                                    'duration_sec'  507
                                           'genre'  electronic-experimental-oddness
                                        'filesize'  13334474
                                           'mtime'  1620539460
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 1982 06 electronic experimental oddness
                                      'tag_artist'  Laurie Anderson
                                     'tag_release'  Big Science
                                       'tag_title'  O Superman
                                             'bpm'  145.7
                                    'search_title'  'o':1 'superman':2
                                   'search_artist'  'anderson':2 'laurie':1
                                  'search_release'  'big':1 'science':2
                                     'search_rest'  '1982':1 'electronic':2 'experimental':3 'oddness':4
                                    'search_combo'  '1982':7 'anderson':4B 'big':5C 'electronic':8 'experimental':9 'laurie':3B 'o':1A 'oddness':10 'science':6C 'superman':2A
                                    'tag_tracknum'  6
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', 'Q-UNU-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-2', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['electronic', 'female vocalists', 'avant garde', 'spoken word', 'experimental']
                                        'tag_date'  2007
                                     'discogstags'  ['electronic', 'rock', 'avantgarde', 'experimental']

============================== file details ==============================
                                           'mtime'  1620539459.8937945  (2021-05-09 07:50:59)
                             'size'  13334474