======================== unified (from filesystem) ========================
                                         'bitrate'  '229.535'
                                        'duration'  '264'
                                          'artist'  'Bee Gees'
                                     'text_people'  'Barry Gibb/Maurice Gibb/Robin Gibb'
                                         'release'  'gay top 100'
                                           'title'  'Guilty'
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', '70s', 'oldies', 'pop', 'disco']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '2001'
                                        'comments'  ''
                                           'genre'  'rock-pop'
                                             'bpm'  '100.655'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'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\x005\x009\x002\x004\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x006\x005\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x002\x002\x000\x008\x005\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x005\x005\x009\x002\x004\x003\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x006\x005\x002\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x005\x002\x002\x000\x008\x005\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:È\x16£Õû¨±F\x99\x106Ѥ\x7f?ì'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xc8\x16\xa3\xd5\xfb\xa8\xb1F\x99\x106\xd1\xa4\x7f?\xec')
'PRIV:WM/WMCollectionID:ç\x19³\x85fÙrJ¢\x85\x00ÆM(\x8b\x9a'  PRIV(owner='WM/WMCollectionID', data=b'\xe7\x19\xb3\x85f\xd9rJ\xa2\x85\x00\xc6M(\x8b\x9a')
'PRIV:WM/WMContentID:ÿ[LçÔùÑI\x8cáËYÝy,ó'           PRIV(owner='WM/WMContentID', data=b'\xff[L\xe7\xd4\xf9\xd1I\x8c\xe1\xcbY\xddy,\xf3')
'TALB' (Album/Movie/Show title)                     'gay top 100'
'TBPM' (BPM (beats per minute))                     '100.655'
'TCOM' (Composer)                                   'Barry Gibb/Maurice Gibb/Robin Gibb'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop'
'TDRC' (Recording time)                             '2001'
'TIT2' (Title/songname/content description)         'Guilty'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Bee Gees'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Reprise'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', '70s', 'oldies', 'pop', 'disco']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.92 dB'
'TXXX:replaygain_track_peak'                        '0.401939'

========================== row from database ==========================
                                              'id'  1326993
                                            'path'  /data/Music/Bulk/00poprockelectronic/gay top 100 - 2015/091 - Barbra Steisand & Barry Gibb - Guilty.mp3
                                         'working'  None
                                         'bitrate'  229
                                    'duration_sec'  264
                                           'genre'  rock-pop
                                        'filesize'  7594581
                                           'mtime'  1620392598
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 2015 091 Barbra Steisand & Barry Gibb rock pop
                                      'tag_artist'  Bee Gees
                                     'tag_release'  gay top 100
                                       'tag_title'  Guilty
                                             'bpm'  100.655
                                    'search_title'  'guilty':1
                                   'search_artist'  'bee':1 'gees':2
                                  'search_release'  '100':3 'gay':1 'top':2
                                     'search_rest'  '00poprockelectronic':1 '2015':2 'barbra':3 'barry':5 'gibb':6 'pop':8 'rock':7 'steisand':4
                                    'search_combo'  '00poprockelectronic':7 '100':6C '2015':8 'barbra':9 'barry':11 'bee':2B 'gay':4C 'gees':3B 'gibb':12 'guilty':1A 'pop':14 'rock':13 'steisand':10 'top':5C
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '70s', 'oldies', 'pop', 'disco']
                                        'tag_date'  2001
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620392598.119822  (2021-05-07 15:03:18)
                             'size'  7594581