======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '139'
                                          'artist'  'Cadillacs with Jesse Powell Orchestra'
                                     'text_people'  ''
                                         'release'  'The Doo Wop Box Disc 2'
                                           'title'  'Speedoo'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-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-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '130'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'prerock-swing'
                                             'bpm'  '126.017'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x00A\x00+\x00B\x006\x00+\x002\x009\x00B\x003\x00+\x005\x002\x006\x009\x00+\x008\x005\x00B\x001\x00+\x00A\x00F\x00F\x00A\x00+\x00D\x00A\x009\x00A\x00+\x001\x001\x002\x00E\x002\x00+\x001\x004\x006\x005\x004\x00+\x001\x007\x00C\x005\x00C\x00+\x001\x00B\x002\x00B\x002\x00+\x001\x00E\x005\x00B\x006\x00+\x002\x001\x000\x008\x009\x00+\x002\x003\x00F\x006\x009\x00+\x002\x006\x00E\x00A\x00A\x00+\x002\x009\x00E\x00E\x00B\x00+\x002\x00C\x00C\x004\x007\x00+\x002\x00F\x006\x001\x008\x00+\x003\x001\x00E\x00B\x006\x00+\x003\x004\x00E\x00E\x005\x00+\x003\x007\x00E\x00B\x005\x00+\x003\x00A\x00A\x000\x002\x00+\x003\x00D\x006\x008\x00F\x00+\x004\x000\x009\x007\x00A\x00+\x004\x003\x005\x00C\x00B\x00+\x004\x006\x006\x004\x00C\x00+\x004\x008\x00F\x005\x003\x00+\x004\x00B\x008\x00A\x00C\x00\x00\x00')
'PRIV:AverageLevel:\x80\x0f\x00\x00'                PRIV(owner='AverageLevel', data=b'\x80\x0f\x00\x00')
'PRIV:PeakValue:ýn\x00\x00'                         PRIV(owner='PeakValue', data=b'\xfdn\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\x000\x003\x002\x008\x009\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\x009\x007\x007\x004\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x000\x003\x002\x008\x009\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\x009\x007\x007\x004\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ºy\x1aÏ\x0c½àA°©§â\x1f¤bz'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xbay\x1a\xcf\x0c\xbd\xe0A\xb0\xa9\xa7\xe2\x1f\xa4bz')
'PRIV:WM/WMCollectionID:éØ\x80\x8dΰaC§¤µ\x01Gw¹ü'  PRIV(owner='WM/WMCollectionID', data=b'\xe9\xd8\x80\x8d\xce\xb0aC\xa7\xa4\xb5\x01Gw\xb9\xfc')
'PRIV:WM/WMContentID:\x90«\x19\x87t\x14\x89B\x95Ö\x1bÐ\x8e\x84Py'  PRIV(owner='WM/WMContentID', data=b'\x90\xab\x19\x87t\x14\x89B\x95\xd6\x1b\xd0\x8e\x84Py')
'TALB' (Album/Movie/Show title)                     'The Doo Wop Box Disc 2'
'TBPM' (BPM (beats per minute))                     '126.017'
'TCON' (Content type, a.k.a. Genre)                 'prerock-swing'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'Speedoo'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '139906'
'TPE1' (Lead performer(s)/Soloist(s))               'Cadillacs with Jesse Powell Orchestra'
'TPUB' (Publisher)                                  'Rhino'
'TRCK' (Track number/Position in set)               '130'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.37 dB'
'TXXX:replaygain_track_peak'                        '0.610264'

========================== row from database ==========================
                                              'id'  1448416
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-130 - Cadillacs with Jesse Powell Orchestra - Speedoo.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  139
                                           'genre'  prerock-swing
                                        'filesize'  5600170
                                           'mtime'  1620562567
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 130 prerock swing
                                      'tag_artist'  Cadillacs with Jesse Powell Orchestra
                                     'tag_release'  The Doo Wop Box Disc 2
                                       'tag_title'  Speedoo
                                             'bpm'  126.017
                                    'search_title'  'speedoo':1
                                   'search_artist'  'cadillacs':1 'jesse':3 'orchestra':5 'powell':4 'with':2
                                  'search_release'  '2':6 'box':4 'disc':5 'doo':2 'the':1 'wop':3
                                     'search_rest'  '00oldiepop':5 '130':7 '1956':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 'swing':9
                                    'search_combo'  '00oldiepop':17 '130':19 '1956':18 '2':12C 'box':10C 'cadillacs':2B 'country':16 'disc':11C 'doo':8C 'exotica':14 'jazz':13 'jesse':4B 'oldies':15 'orchestra':6B 'powell':5B 'prerock':20 'speedoo':1A 'swing':21 'the':7C 'with':3B 'wop':9C
                                    'tag_tracknum'  130
                                      'num_images'  0
                                             'key'  5B
                                           '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-2', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562566.8464353  (2021-05-09 14:16:06)
                             'size'  5600170