======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '165'
                                          'artist'  'Jerry Butler'
                                     'text_people'  'Arthur Brooks/Jerry Butler'
                                         'release'  'The Best of Jerry Butler [Rhino]'
                                           'title'  'For Your Precious Love'
                                           'quals'  ("['Q-JZFKS-2', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-4', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                                      'lastfmtags'  "['soul', 'rhythm and blues', 'oldies', 'northern soul', '60s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '105.974'
                                             'key'  '3B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-108 POS 11'
'COMM:ID3v1 Comment:XXX'                            '58-108 POS 11'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x002\x00+\x009\x006\x00+\x003\x001\x002\x001\x00+\x006\x002\x00A\x00C\x00+\x009\x004\x00F\x009\x00+\x00B\x00F\x003\x008\x00+\x00E\x00E\x005\x004\x00+\x001\x001\x00E\x00F\x004\x00+\x001\x004\x00F\x005\x00C\x00+\x001\x007\x007\x002\x00D\x00+\x001\x00A\x005\x00D\x00D\x00+\x001\x00D\x003\x007\x006\x00+\x002\x000\x007\x00B\x00C\x00+\x002\x003\x005\x000\x00F\x00+\x002\x006\x00B\x00B\x007\x00+\x002\x00A\x001\x005\x00C\x00+\x002\x00D\x003\x00A\x00C\x00+\x003\x000\x00A\x006\x00D\x00+\x003\x003\x009\x00D\x00C\x00+\x003\x006\x007\x003\x008\x00\x00\x00')
'PRIV:AverageLevel:Ê\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xca\r\x00\x00')
'PRIV:PeakValue:Ên\x00\x00'                         PRIV(owner='PeakValue', data=b'\xcan\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 \x00 \x00 \x003\x000\x002\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x008\x000\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x008\x004\x002\x005\x005\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x00 \x003\x000\x002\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x003\x008\x000\x007\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x008\x004\x002\x005\x005\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ç\x11\x04\x17\x95RyD\x8d·\x17\x13?\x19\x11ï'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xe7\x11\x04\x17\x95RyD\x8d\xb7\x17\x13?\x19\x11\xef')
'PRIV:WM/WMCollectionID:ç\x11\x04\x17\x95RyD\x8d·\x17\x13?\x19\x11ï'  PRIV(owner='WM/WMCollectionID', data=b'\xe7\x11\x04\x17\x95RyD\x8d\xb7\x17\x13?\x19\x11\xef')
'PRIV:WM/WMContentID:L¦Y\x19\xa0\x17\x1fB\x98-\x0bQ*àå\x0c'  PRIV(owner='WM/WMContentID', data=b'L\xa6Y\x19\xa0\x17\x1fB\x98-\x0bQ*\xe0\xe5\x0c')
'TALB' (Album/Movie/Show title)                     'The Best of Jerry Butler [Rhino]'
'TBPM' (BPM (beats per minute))                     '105.974'
'TCOM' (Composer)                                   'Arthur Brooks/Jerry Butler'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         'For Your Precious Love'
'TKEY' (Initial key)                                '3B'
'TLEN' (Length)                                     '165693'
'TPE1' (Lead performer(s)/Soloist(s))               'Jerry Butler & The Impressions'
'TPE2' (Band/orchestra/accompaniment)               'Jerry Butler'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soul', 'rhythm and blues', 'oldies', 'northern soul', '60s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+0.82 dB'
'TXXX:replaygain_track_peak'                        '0.724654'

========================== row from database ==========================
                                              'id'  1432009
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-108 - Jerry Butler & The Impressions - For Your Precious Love.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  165
                                           'genre'  prerock-unsorted
                                        'filesize'  6629248
                                           'mtime'  1620387739
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 108 & Impressions prerock unsorted
                                      'tag_artist'  Jerry Butler
                                     'tag_release'  The Best of Jerry Butler [Rhino]
                                       'tag_title'  For Your Precious Love
                                             'bpm'  105.974
                                    'search_title'  'for':1 'love':4 'precious':3 'your':2
                                   'search_artist'  'butler':2 'jerry':1
                                  'search_release'  'best':2 'butler':5 'jerry':4 'of':3 'rhino':6,7 'the':1
                                     'search_rest'  '00oldiepop':5 '108':8 '1958':6 '58':7 'country':4 'exotica':2 'impressions':9 'jazz':1 'oldies':3 'prerock':10 'unsorted':11
                                    'search_combo'  '00oldiepop':18 '108':21 '1958':19 '58':20 'best':8C 'butler':6B,11C 'country':17 'exotica':15 'for':1A 'impressions':22 'jazz':14 'jerry':5B,10C 'love':4A 'of':9C 'oldies':16 'precious':3A 'prerock':23 'rhino':12C,13C 'the':7C 'unsorted':24 'your':2A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  3B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['soul', 'rhythm and blues', 'oldies', 'northern soul', '60s']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387738.7458026  (2021-05-07 13:42:18)
                             'size'  6629248