======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '147'
                                          'artist'  'Tab Hunter'
                                     'text_people'  ''
                                         'release'  'Teen Idols for a Moment'
                                           'title'  'Young Love'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['50s', 'easy listening', '60s', 'oldies', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '006'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '102.644'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:#\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'#\r\x00\x00')
'PRIV:PeakValue:\x19I\x00\x00'                      PRIV(owner='PeakValue', data=b'\x19I\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 \x002\x002\x004\x008\x008\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x005\x001\x008\x003\x007\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x002\x004\x008\x008\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x005\x001\x008\x003\x007\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:@ÑTMN\x93dNª:°ºÏróE'   PRIV(owner='WM/WMCollectionGroupID', data=b'@\xd1TMN\x93dN\xaa:\xb0\xba\xcfr\xf3E')
'PRIV:WM/WMCollectionID:@ÑTMN\x93dNª:°ºÏróE'        PRIV(owner='WM/WMCollectionID', data=b'@\xd1TMN\x93dN\xaa:\xb0\xba\xcfr\xf3E')
'PRIV:WM/WMContentID:oú\x7f#/ªbE¬AÛ\x95Ö\x84\\$'    PRIV(owner='WM/WMContentID', data=b'o\xfa\x7f#/\xaabE\xacA\xdb\x95\xd6\x84\\$')
'TALB' (Album/Movie/Show title)                     'Teen Idols for a Moment'
'TBPM' (BPM (beats per minute))                     '102.644'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Young Love'
'TKEY' (Initial key)                                '9B'
'TLEN' (Length)                                     '147173'
'TPE1' (Lead performer(s)/Soloist(s))               'Tab Hunter'
'TPUB' (Publisher)                                  "Collectors' Choice Music"
'TRCK' (Track number/Position in set)               '006'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['50s', 'easy listening', '60s', 'oldies', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.403216'

========================== row from database ==========================
                                              'id'  1454474
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-006 - Tab Hunter - Young Love.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  147
                                           'genre'  prerock-unsorted
                                        'filesize'  5888000
                                           'mtime'  1621698307
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 006 prerock unsorted
                                      'tag_artist'  Tab Hunter
                                     'tag_release'  Teen Idols for a Moment
                                       'tag_title'  Young Love
                                             'bpm'  102.644
                                    'search_title'  'love':2 'young':1
                                   'search_artist'  'hunter':2 'tab':1
                                  'search_release'  'a':4 'for':3 'idols':2 'moment':5 'teen':1
                                     'search_rest'  '00oldiepop':5 '1957':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':7 'unsorted':8
                                    'search_combo'  '00oldiepop':14 '1957':15 'a':8C 'country':13 'exotica':11 'for':7C 'hunter':4B 'idols':6C 'jazz':10 'love':2A 'moment':9C 'oldies':12 'prerock':16 'tab':3B 'teen':5C 'unsorted':17 'young':1A
                                    'tag_tracknum'  6
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['50s', 'easy listening', '60s', 'oldies', 'swing']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621698307.4090524  (2021-05-22 17:45:07)
                             'size'  5888000