======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '123'
                                          'artist'  'Roy Brown'
                                     'text_people'  ''
                                         'release'  'Treasured Tunes, Vol. 3'
                                           'title'  'Let The Four Winds Blow'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-2', '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-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['blues', 'jazz', 'rhythm and blues', 'rockabilly', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '216'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'prerock-jb-unsorted'
                                             'bpm'  '91.391'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:í\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xed\x0f\x00\x00')
'PRIV:PeakValue:%v\x00\x00'                         PRIV(owner='PeakValue', data=b'%v\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 \x003\x000\x005\x001\x005\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x005\x004\x006\x002\x009\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x003\x000\x005\x001\x005\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x005\x004\x006\x002\x009\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x17»E\x14íÍ=I\x92vhµÍu÷\xad'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x17\xbbE\x14\xed\xcd=I\x92vh\xb5\xcdu\xf7\xad')
'PRIV:WM/WMCollectionID:\x17»E\x14íÍ=I\x92vhµÍu÷\xad'  PRIV(owner='WM/WMCollectionID', data=b'\x17\xbbE\x14\xed\xcd=I\x92vh\xb5\xcdu\xf7\xad')
'PRIV:WM/WMContentID:0û\t·èá\x18OµäÈæoÛ\x8bç'       PRIV(owner='WM/WMContentID', data=b'0\xfb\t\xb7\xe8\xe1\x18O\xb5\xe4\xc8\xe6o\xdb\x8b\xe7')
'TALB' (Album/Movie/Show title)                     'Treasured Tunes, Vol. 3'
'TBPM' (BPM (beats per minute))                     '91.391'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-unsorted'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Let The Four Winds Blow'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '123800'
'TPE1' (Lead performer(s)/Soloist(s))               'Roy Brown'
'TPUB' (Publisher)                                  'Stardust'
'TRCK' (Track number/Position in set)               '216'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['blues', 'jazz', 'rhythm and blues', 'rockabilly', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'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'                        '+0.68 dB'
'TXXX:replaygain_track_peak'                        '0.648288'

========================== row from database ==========================
                                              'id'  1451496
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-216 - Roy Brown - Let The Four Winds Blow.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  123
                                           'genre'  prerock-jb-unsorted
                                        'filesize'  4953414
                                           'mtime'  1620527800
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 216 prerock jb unsorted
                                      'tag_artist'  Roy Brown
                                     'tag_release'  Treasured Tunes, Vol. 3
                                       'tag_title'  Let The Four Winds Blow
                                             'bpm'  91.391
                                    'search_title'  'blow':5 'four':3 'let':1 'the':2 'winds':4
                                   'search_artist'  'brown':2 'roy':1
                                  'search_release'  '3':6 'treasured':1 'tunes':2,3 'vol':4,5
                                     'search_rest'  '00oldiepop':5 '1957':6 '216':7 'country':4 'exotica':2 'jazz':1 'jb':9 'oldies':3 'prerock':8 'unsorted':10
                                    'search_combo'  '00oldiepop':18 '1957':19 '216':20 '3':13C 'blow':5A 'brown':7B 'country':17 'exotica':15 'four':3A 'jazz':14 'jb':22 'let':1A 'oldies':16 'prerock':21 'roy':6B 'the':2A 'treasured':8C 'tunes':9C,10C 'unsorted':23 'vol':11C,12C 'winds':4A
                                    'tag_tracknum'  216
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['blues', 'jazz', 'rhythm and blues', 'rockabilly', 'rock']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527800.1375968  (2021-05-09 04:36:40)
                             'size'  4953414