======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '81'
                                          'artist'  'Tiersen, Yann'
                                     'text_people'  'Yann Tiersen'
                                         'release'  'Good Bye Lenin!'
                                           'title'  'Letters'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'Q-LOCALNESS-2', 'q-syn-2', 'Q-PLAY-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-1', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'soundtrack', 'piano', 'french', 'classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '16'
                                      'tracktotal'  ''
                                            'date'  '2003'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '90.980'
                                             'key'  '12A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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 \x006\x006\x000\x005\x000\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x003\x005\x005\x001\x009\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x006\x006\x000\x009\x006\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x006\x000\x005\x000\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x003\x005\x005\x001\x009\x009\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x006\x006\x000\x009\x006\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:{º/ã\rÙ¿K¸à¾ª\x0b\x04\x95\x81'  PRIV(owner='WM/WMCollectionGroupID', data=b'{\xba/\xe3\r\xd9\xbfK\xb8\xe0\xbe\xaa\x0b\x04\x95\x81')
'PRIV:WM/WMCollectionID:{º/ã\rÙ¿K¸à¾ª\x0b\x04\x95\x81'  PRIV(owner='WM/WMCollectionID', data=b'{\xba/\xe3\r\xd9\xbfK\xb8\xe0\xbe\xaa\x0b\x04\x95\x81')
'PRIV:WM/WMContentID:R¥¼\x9aShSM¯\x03~}\x03¯ÒÁ'     PRIV(owner='WM/WMContentID', data=b'R\xa5\xbc\x9aShSM\xaf\x03~}\x03\xaf\xd2\xc1')
'TALB' (Album/Movie/Show title)                     'Good Bye Lenin!'
'TBPM' (BPM (beats per minute))                     '90.980'
'TCOM' (Composer)                                   'Yann Tiersen'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2003'
'TIT2' (Title/songname/content description)         'Letters'
'TKEY' (Initial key)                                '12A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yann Tiersen'
'TPE2' (Band/orchestra/accompaniment)               'Tiersen, Yann'
'TPUB' (Publisher)                                  'X Filme'
'TRCK' (Track number/Position in set)               '16'
'TXXX:MusicBrainz Album Id'                         'ba5b6ba5-249c-488a-a6b9-9284d57d30a5'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'soundtrack'
'TXXX:MusicBrainz Artist Id'                        '12d432a3-feb0-49b1-a107-d20751880764'
'TXXX:MusicBrainz TRM Id'                           'f96c4116-ca13-481d-bb55-43d4af24df66'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'soundtrack', 'piano', 'french', 'classical']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.60 dB'
'TXXX:replaygain_track_peak'                        '0.363830'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'0ea40b50-d17e-4fd8-93c4-1efdcfb45305')

========================== row from database ==========================
                                              'id'  1256899
                                            'path'  /data/Music/Bulk/0soundtrack/Tiersen, Yann - Yann Tiersen/Yann Tiersen_/Good Bye Lenin!/-Good Bye Lenin!-16-Letters.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  81
                                           'genre'  soundtrack-video
                                        'filesize'  1957199
                                           'mtime'  1644062808
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Tiersen_ 16 soundtrack video
                                      'tag_artist'  Tiersen, Yann
                                     'tag_release'  Good Bye Lenin!
                                       'tag_title'  Letters
                                             'bpm'  90.98
                                    'search_title'  'letters':1
                                   'search_artist'  'tiersen':1,2 'yann':3
                                  'search_release'  'bye':2 'good':1 'lenin':3
                                     'search_rest'  '0soundtrack':1 'soundtrack':3 'tiersen':2 'video':4
                                    'search_combo'  '0soundtrack':8 'bye':6C 'good':5C 'lenin':7C 'letters':1A 'soundtrack':10 'tiersen':2B,3B,9 'video':11 'yann':4B
                                    'tag_tracknum'  16
                                      'num_images'  1
                                             'key'  12A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'Q-LOCALNESS-2', 'q-syn-2', 'Q-PLAY-2', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'Q-PIANO-2', 'q-chart-3', 'q-drums-1', 'q-other-3', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['instrumental', 'soundtrack', 'piano', 'french', 'classical']
                                        'tag_date'  2003
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1644062808.400272  (2022-02-05 13:06:48)
                             'size'  1957199