======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '269'
                                          'artist'  'Vitamin String Quartet'
                                     'text_people'  'J.M. Stipe/Mike Mills/Peter Buck/T. Berry'
                                         'release'  'The String Quartet Tribute REM'
                                           'title'  'Losing My Religion'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-3', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classical', 'cover', 'covers', 'instrumental', 'tribute', 'strings']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'prerock-classical or classical instruments'
                                             'bpm'  '125.006'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000009F7 0000096F 000035BA'
'COMM:iTunNORM:eng'                                 (' 000009F7 0000096F 000035BA 000033AF 00002004 00002004 00007C7B 000078EE '
 '0001F269 00027D01')
'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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x004\x002\x001\x002\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x003\x006\x003\x005\x009\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x004\x002\x001\x002\x002\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x003\x006\x003\x005\x009\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:pÀÅ£Ìò\x82@\x88ÇÉAlÓIg'  PRIV(owner='WM/WMCollectionGroupID', data=b'p\xc0\xc5\xa3\xcc\xf2\x82@\x88\xc7\xc9Al\xd3Ig')
'PRIV:WM/WMCollectionID:pÀÅ£Ìò\x82@\x88ÇÉAlÓIg'     PRIV(owner='WM/WMCollectionID', data=b'p\xc0\xc5\xa3\xcc\xf2\x82@\x88\xc7\xc9Al\xd3Ig')
'PRIV:WM/WMContentID:\x1a\x8cª\x8c\rÂÕI¯½\x97tDm¶\x90'  PRIV(owner='WM/WMContentID', data=b'\x1a\x8c\xaa\x8c\r\xc2\xd5I\xaf\xbd\x97tDm\xb6\x90')
'TALB' (Album/Movie/Show title)                     'The String Quartet Tribute REM'
'TBPM' (BPM (beats per minute))                     '125.006'
'TCOM' (Composer)                                   'J.M. Stipe/Mike Mills/Peter Buck/T. Berry'
'TCON' (Content type, a.k.a. Genre)                 'prerock-classical or classical instruments'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Losing My Religion'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Vitamin String Quartet'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Vitamin'
'TRCK' (Track number/Position in set)               '3'
'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:lastfmtags'                                   ['classical', 'cover', 'covers', 'instrumental', 'tribute', 'strings']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'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'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.26 dB'
'TXXX:replaygain_track_peak'                        '0.486252'

========================== row from database ==========================
                                              'id'  1316121
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/the string quartet - tribute to r e m - losing my religion.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  269
                                           'genre'  prerock-classical or classical instruments
                                        'filesize'  4311677
                                           'mtime'  1637329821
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] the string quartet tribute to losing my religion prerock classical or classical instruments
                                      'tag_artist'  Vitamin String Quartet
                                     'tag_release'  The String Quartet Tribute REM
                                       'tag_title'  Losing My Religion
                                             'bpm'  125.006
                                    'search_title'  'losing':1 'my':2 'religion':3
                                   'search_artist'  'quartet':3 'string':2 'vitamin':1
                                  'search_release'  'quartet':3 'rem':5 'string':2 'the':1 'tribute':4
                                     'search_rest'  '00poprockelectronic':1 'classical':16 'files':5,6 'instruments':18 'loose':3,4 'losing':12 'my':13 'or':17 'prerock':15 'quartet':9 'religion':14 'string':8 'the':7 'to':11 'tribute':10 'unsorted':2
                                    'search_combo'  '00poprockelectronic':12 'classical':27 'files':16,17 'instruments':29 'loose':14,15 'losing':1A,23 'my':2A,24 'or':28 'prerock':26 'quartet':6B,9C,20 'religion':3A,25 'rem':11C 'string':5B,8C,19 'the':7C,18 'to':22 'tribute':10C,21 'unsorted':13 'vitamin':4B
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-other-4', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classical', 'cover', 'covers', 'instrumental', 'tribute', 'strings']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1637329821.455423  (2021-11-19 14:50:21)
                             'size'  4311677