======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '314'
                                          'artist'  'Donna Summer'
                                     'text_people'  ''
                                         'release'  'Endless Summer: Greatest Hits'
                                           'title'  'Could It Be Magic'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dance', '70s', 'female vocalists', 'pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'set-th-sex'
                                             'bpm'  '126.095'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'PRIV:Amadeus II 3.5:pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA'  PRIV(owner='Amadeus II 3.5', data=b'pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA')
'PRIV:AverageLevel:©\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xa9\x0f\x00\x00')
'PRIV:PeakValue:\x91}\x00\x00'                      PRIV(owner='PeakValue', data=b'\x91}\x00\x00')
'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\x001\x009\x005\x003\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x005\x005\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x009\x006\x005\x004\x005\x007\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x004\x001\x009\x005\x003\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x005\x005\x006\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x009\x006\x005\x004\x005\x007\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:Õ\x1c\x9b\x8c¸¿\x98H£û\x86L¾9èP'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xd5\x1c\x9b\x8c\xb8\xbf\x98H\xa3\xfb\x86L\xbe9\xe8P')
'PRIV:WM/WMCollectionID:Õ\x1c\x9b\x8c¸¿\x98H£û\x86L¾9èP'  PRIV(owner='WM/WMCollectionID', data=b'\xd5\x1c\x9b\x8c\xb8\xbf\x98H\xa3\xfb\x86L\xbe9\xe8P')
'PRIV:WM/WMContentID:û\x97ÂBz!5B¾8®ù&ñ\xad\x0b'     PRIV(owner='WM/WMContentID', data=b'\xfb\x97\xc2Bz!5B\xbe8\xae\xf9&\xf1\xad\x0b')
'TALB' (Album/Movie/Show title)                     'Endless Summer: Greatest Hits'
'TBPM' (BPM (beats per minute))                     '126.095'
'TCON' (Content type, a.k.a. Genre)                 'set-th-sex'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         'Could It Be Magic'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Donna Summer'
'TPE2' (Band/orchestra/accompaniment)               'Donna Summer'
'TPUB' (Publisher)                                  'Mercury'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['dance', '70s', 'female vocalists', 'pop', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.48 dB'
'TXXX:replaygain_track_peak'                        '0.677322'

========================== row from database ==========================
                                              'id'  770483
                                            'path'  /data/Music/Bulk/0playlists/0novelty themes/sexy/Donna Summer - Could It Be Magic.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  314
                                           'genre'  set-th-sex
                                        'filesize'  7570125
                                           'mtime'  1621696910
                                   'redo_metaread'  0
                                        'rest_str'   0playlists 0novelty themes sexy set th sex
                                      'tag_artist'  Donna Summer
                                     'tag_release'  Endless Summer: Greatest Hits
                                       'tag_title'  Could It Be Magic
                                             'bpm'  126.095
                                    'search_title'  'be':3 'could':1 'it':2 'magic':4
                                   'search_artist'  'donna':1 'summer':2
                                  'search_release'  'endless':1 'greatest':4 'hits':5 'summer':2,3
                                     'search_rest'  '0novelty':2 '0playlists':1 'set':5 'sex':7 'sexy':4 'th':6 'themes':3
                                    'search_combo'  '0novelty':13 '0playlists':12 'be':3A 'could':1A 'donna':5B 'endless':7C 'greatest':10C 'hits':11C 'it':2A 'magic':4A 'set':16 'sex':18 'sexy':15 'summer':6B,8C,9C 'th':17 'themes':14
                                    'tag_tracknum'  3
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dance', '70s', 'female vocalists', 'pop', 'disco']
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621696910.1862807  (2021-05-22 17:21:50)
                             'size'  7570125