======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '453'
                                          'artist'  'The Sisters of Mercy'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Vision Thing'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['80s', 'gothic rock', 'post punk', 'gothic', 'goth']"
                                     'discogstags'  "['goth rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '99.910'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'PCNT' (Play counter)                               PCNT(count=0)
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TBPM' (BPM (beats per minute))                     '99.910'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Vision Thing'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '453000'
'TPE1' (Lead performer(s)/Soloist(s))               'The Sisters of Mercy'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['goth rock', 'rock']
'TXXX:lastfmtags'                                   ['80s', 'gothic rock', 'post punk', 'gothic', 'goth']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.40 dB'
'TXXX:replaygain_track_peak'                        '0.508132'

========================== row from database ==========================
                                              'id'  1322612
                                            'path'  /data/Music/Bulk/00poprockelectronic/Sisters of Mercy/Sisters of Mercy - vision thing.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  453
                                           'genre'  rock-unsorted
                                        'filesize'  7253888
                                           'mtime'  1621695863
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic vision thing rock unsorted
                                      'tag_artist'  The Sisters of Mercy
                                     'tag_release'  None
                                       'tag_title'  Vision Thing
                                             'bpm'  99.91
                                    'search_title'  'thing':2 'vision':1
                                   'search_artist'  'mercy':4 'of':3 'sisters':2 'the':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'rock':4 'thing':3 'unsorted':5 'vision':2
                                    'search_combo'  '00poprockelectronic':7 'mercy':6B 'of':5B 'rock':10 'sisters':4B 'the':3B 'thing':2A,9 'unsorted':11 'vision':1A,8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['80s', 'gothic rock', 'post punk', 'gothic', 'goth']
                                        'tag_date'  1990
                                     'discogstags'  ['goth rock', 'rock']

============================== file details ==============================
                                           'mtime'  1621695862.680315  (2021-05-22 17:04:22)
                             'size'  7253888