======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '174'
                                          'artist'  'David Bowie'
                                     'text_people'  'Black Francis'
                                         'release'  "You Can't Judge a Song By Its Cover"
                                           'title'  'Cactus'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'set-cover or covered-styled;set-cover or covered'
                                             'bpm'  '113.708'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x005\x004\x003\x00F\x00+\x008\x007\x007\x005\x00+\x00F\x002\x004\x00B\x00+\x001\x004\x004\x00B\x000\x00+\x001\x008\x001\x00B\x001\x00+\x001\x00B\x006\x007\x000\x00+\x002\x001\x002\x005\x00F\x00+\x002\x005\x00A\x009\x004\x00+\x002\x00B\x002\x00F\x000\x00+\x002\x00F\x008\x009\x001\x00+\x003\x004\x002\x002\x00E\x00+\x003\x008\x00D\x00E\x009\x00\x00\x00')
'POPM:no@email'                                     POPM(email='no@email', rating=118, 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')
'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 \x005\x009\x000\x000\x009\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x007\x005\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x005\x006\x003\x002\x008\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x009\x000\x000\x009\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x007\x005\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x005\x006\x003\x002\x008\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:êZÂ\x19³Ê\x04N¾Ø\x1aé\x06\x94hO'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xeaZ\xc2\x19\xb3\xca\x04N\xbe\xd8\x1a\xe9\x06\x94hO')
'PRIV:WM/WMCollectionID:êZÂ\x19³Ê\x04N¾Ø\x1aé\x06\x94hO'  PRIV(owner='WM/WMCollectionID', data=b'\xeaZ\xc2\x19\xb3\xca\x04N\xbe\xd8\x1a\xe9\x06\x94hO')
'PRIV:WM/WMContentID:K¡\xad4²pÊB¹\x7fÄånÝw}'        PRIV(owner='WM/WMContentID', data=b'K\xa1\xad4\xb2p\xcaB\xb9\x7f\xc4\xe5n\xddw}')
'PRIV:ZuneAlbumArtistMediaID:\x00\x00\x0e©\x00\x06Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneAlbumArtistMediaID', data=b'\x00\x00\x0e\xa9\x00\x06\xdb\x11\x89\xca\x00\x19\xb9*93')
'PRIV:ZuneAlbumMediaID:\x00\t\x00y\x00\x01Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneAlbumMediaID', data=b'\x00\t\x00y\x00\x01\xdb\x11\x89\xca\x00\x19\xb9*93')
'PRIV:ZuneCollectionID:\x04ð!;<¦\x1a@½¤\x07»\x8cÈó0'  PRIV(owner='ZuneCollectionID', data=b'\x04\xf0!;<\xa6\x1a@\xbd\xa4\x07\xbb\x8c\xc8\xf30')
'PRIV:ZuneMediaID:\x00\t\x00}\x00\x01Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneMediaID', data=b'\x00\t\x00}\x00\x01\xdb\x11\x89\xca\x00\x19\xb9*93')
'TALB' (Album/Movie/Show title)                     "You Can't Judge a Song By Its Cover"
'TBPM' (BPM (beats per minute))                     '113.708'
'TCOM' (Composer)                                   'Black Francis'
'TCON' (Content type, a.k.a. Genre)                 ['set-cover or covered-styled', 'set-cover or covered']
'TIT2' (Title/songname/content description)         'Cactus'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '/1'
'TPUB' (Publisher)                                  'Sbme Special MKTS.'
'TXXX:DATE'                                         '2002'
'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'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.21 dB'
'TXXX:replaygain_track_peak'                        '0.383091'

========================== row from database ==========================
                                              'id'  1529465
                                            'path'  /data/Music/Bulk/00poprockelectronic/you can_t judge a song by its cover/-00-David Bowie-Cactus.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  174
                                           'genre'  set-cover or covered-styled;set-cover or covered
                                        'filesize'  7003867
                                           'mtime'  1638540240
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic you can_t judge song by its cover 00 set cover or covered styled;set cover or covered
                                      'tag_artist'  David Bowie
                                     'tag_release'  You Can't Judge a Song By Its Cover
                                       'tag_title'  Cactus
                                             'bpm'  113.708
                                    'search_title'  'cactus':1
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'a':6 'by':8 'can':2 'cant':4 'cover':10 'its':9 'judge':5 'song':7 't':3 'you':1
                                     'search_rest'  '00':10 '00poprockelectronic':1 'by':7 'can':3 'cover':9 'covered':13 'its':8 'judge':5 'or':12 'set':11,15,17 'song':6 'styled':14,16 't':4 'you':2
                                    'search_combo'  '00':23 '00poprockelectronic':14 'a':9C 'bowie':3B 'by':11C,20 'cactus':1A 'can':5C,16 'cant':7C 'cover':13C,22 'covered':26 'david':2B 'its':12C,21 'judge':8C,18 'or':25 'set':24,28,30 'song':10C,19 'styled':27,29 't':6C,17 'you':4C,15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1638540240.458406  (2021-12-03 15:04:00)
                             'size'  7003867