======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '133'
                                          'artist'  'Elvis Presley'
                                     'text_people'  'Aaron Schroeder; Sidney Wyche'
                                         'release'  'The Top Ten Hits Disc 1'
                                           'title'  "A Big Hunk O' Love"
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'rock-pop-early'
                                             'bpm'  '118.221'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-012 POS 1'
'COMM:ID3v1 Comment:XXX'                            '59-012 POS 1'
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'PRIV:AverageLevel:Ñ\t\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xd1\t\x00\x00')
'PRIV:PeakValue:äE\x00\x00'                         PRIV(owner='PeakValue', data=b'\xe4E\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')
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'PRIV:WM/WMCollectionGroupID:\x1fu\x0e{hgeH\x92öGü§DÄ:'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x1fu\x0e{hgeH\x92\xf6G\xfc\xa7D\xc4:')
'PRIV:WM/WMCollectionID:\x1fu\x0e{hgeH\x92öGü§DÄ:'  PRIV(owner='WM/WMCollectionID', data=b'\x1fu\x0e{hgeH\x92\xf6G\xfc\xa7D\xc4:')
'PRIV:WM/WMContentID:`e\xad;,÷ëI\x97ÙZ\xa0\tôÃÂ'    PRIV(owner='WM/WMContentID', data=b'`e\xad;,\xf7\xebI\x97\xd9Z\xa0\t\xf4\xc3\xc2')
'TALB' (Album/Movie/Show title)                     'The Top Ten Hits Disc 1'
'TBPM' (BPM (beats per minute))                     '118.221'
'TCOM' (Composer)                                   'Aaron Schroeder; Sidney Wyche'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         "A Big Hunk O' Love"
'TKEY' (Initial key)                                '5A'
'TLEN' (Length)                                     '133986'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TPE2' (Band/orchestra/accompaniment)               'Elvis Presley'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '19'
'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'                                   ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'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'                        '+0.53 dB'
'TXXX:replaygain_track_peak'                        '0.541191'

========================== row from database ==========================
                                              'id'  1520946
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-012 - Elvis Presley - A Big Hunk O_ Love.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  133
                                           'genre'  rock-pop-early
                                        'filesize'  5362449
                                           'mtime'  1620736407
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 012 O_ rock pop early
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  The Top Ten Hits Disc 1
                                       'tag_title'  A Big Hunk O' Love
                                             'bpm'  118.221
                                    'search_title'  'a':1 'big':2 'hunk':3 'love':6 'o':4,5
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  '1':6 'disc':5 'hits':4 'ten':3 'the':1 'top':2
                                     'search_rest'  '00oldiepop':5 '1959':6 '59':7 'country':4 'early':11 'exotica':2 'jazz':1 'o':8 'oldies':3 'pop':10 'rock':9
                                    'search_combo'  '00oldiepop':19 '1':14C '1959':20 '59':21 'a':1A 'big':2A 'country':18 'disc':13C 'early':25 'elvis':7B 'exotica':16 'hits':12C 'hunk':3A 'jazz':15 'love':6A 'o':4A,5A,22 'oldies':17 'pop':24 'presley':8B 'rock':23 'ten':11C 'the':9C 'top':10C
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  5A
                                           '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-3', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736407.4536748  (2021-05-11 14:33:27)
                             'size'  5362449