======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '155'
                                          'artist'  'George Hamilton IV'
                                     'text_people'  'Jack Fishman/Joe Henderson'
                                         'release'  'Treasured Tunes, Vol. 2'
                                           'title'  "Why Don't They Understand"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['country', 'oldies', 'rockabilly', 'classic country']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1958'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-easy'
                                             'bpm'  '94.239'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '58-098 POS 10'
'COMM:ID3v1 Comment:XXX'                            '58-098 POS 10'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x004\x00+\x009\x006\x00+\x002\x008\x006\x004\x00+\x005\x008\x006\x003\x00+\x008\x005\x00F\x004\x00+\x00B\x000\x00A\x004\x00+\x00D\x005\x003\x009\x00+\x00F\x007\x00D\x00A\x00+\x001\x001\x00E\x00B\x00F\x00+\x001\x004\x00B\x00D\x003\x00+\x001\x006\x00A\x00F\x008\x00+\x001\x009\x001\x00D\x00B\x00+\x001\x00B\x008\x00F\x002\x00+\x001\x00E\x003\x000\x002\x00+\x002\x000\x00A\x00F\x00F\x00+\x002\x003\x000\x009\x00D\x00+\x002\x005\x005\x006\x009\x00+\x002\x008\x002\x005\x005\x00+\x002\x00B\x000\x009\x000\x00+\x002\x00D\x003\x00F\x002\x00+\x003\x000\x001\x00B\x005\x00+\x003\x002\x00E\x00F\x008\x00\x00\x00')
'PRIV:AverageLevel:]\x11\x00\x00'                   PRIV(owner='AverageLevel', data=b']\x11\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\x7f\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\x005\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\x000\x000\x004\x002\x002\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\x005\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\x000\x000\x004\x002\x002\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x1b\x96ª\x13ûÇXC·\x05-¢d«I`'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x1b\x96\xaa\x13\xfb\xc7XC\xb7\x05-\xa2d\xabI`')
'PRIV:WM/WMCollectionID:\x1b\x96ª\x13ûÇXC·\x05-¢d«I`'  PRIV(owner='WM/WMCollectionID', data=b'\x1b\x96\xaa\x13\xfb\xc7XC\xb7\x05-\xa2d\xabI`')
'PRIV:WM/WMContentID:\x11\x00\x82\x82\x90Ç3B¶n\x1fn¨\x06\x12\x1b'  PRIV(owner='WM/WMContentID', data=b'\x11\x00\x82\x82\x90\xc73B\xb6n\x1fn\xa8\x06\x12\x1b')
'TALB' (Album/Movie/Show title)                     'Treasured Tunes, Vol. 2'
'TBPM' (BPM (beats per minute))                     '94.239'
'TCOM' (Composer)                                   'Jack Fishman/Joe Henderson'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-easy'
'TDRC' (Recording time)                             '1958'
'TIT2' (Title/songname/content description)         "Why Don't They Understand"
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '155533'
'TPE1' (Lead performer(s)/Soloist(s))               'George Hamilton IV'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Stardust'
'TRCK' (Track number/Position in set)               '3'
'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'                                   ['country', 'oldies', 'rockabilly', 'classic country']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'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'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.27 dB'
'TXXX:replaygain_track_peak'                        '0.594177'

========================== row from database ==========================
                                              'id'  1511087
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1958/58-098 - George Hamilton IV - Why Don_t They Understand.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  155
                                           'genre'  prerock-vocal-easy
                                        'filesize'  6223019
                                           'mtime'  1621625786
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1958 58 098 Don_t prerock vocal easy
                                      'tag_artist'  George Hamilton IV
                                     'tag_release'  Treasured Tunes, Vol. 2
                                       'tag_title'  Why Don't They Understand
                                             'bpm'  94.239
                                    'search_title'  'don':2 'dont':4 't':3 'they':5 'understand':6 'why':1
                                   'search_artist'  'george':1 'hamilton':2 'iv':3
                                  'search_release'  '2':6 'treasured':1 'tunes':2,3 'vol':4,5
                                     'search_rest'  '00oldiepop':5 '1958':6 '58':7 'country':4 'don':8 'easy':12 'exotica':2 'jazz':1 'oldies':3 'prerock':10 't':9 'vocal':11
                                    'search_combo'  '00oldiepop':20 '1958':21 '2':15C '58':22 'country':19 'don':2A,23 'dont':4A 'easy':27 'exotica':17 'george':7B 'hamilton':8B 'iv':9B 'jazz':16 'oldies':18 'prerock':25 't':3A,24 'they':5A 'treasured':10C 'tunes':11C,12C 'understand':6A 'vocal':26 'vol':13C,14C 'why':1A
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  8A
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['country', 'oldies', 'rockabilly', 'classic country']
                                        'tag_date'  1958
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625785.9911993  (2021-05-21 21:36:25)
                             'size'  6223019