======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '157'
                                          'artist'  'Tommy Sands'
                                     'text_people'  ''
                                         'release'  'Steady Date with Tommy Sands'
                                           'title'  'My Love Song'
                                           '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-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'celtic', 'oldies', 'pop', 'rockabilly']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '328'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '137.199'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:AverageLevel:\x87\x10\x00\x00'                PRIV(owner='AverageLevel', data=b'\x87\x10\x00\x00')
'PRIV:PeakValue:¿o\x00\x00'                         PRIV(owner='PeakValue', data=b'\xbfo\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 \x001\x000\x008\x004\x001\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x006\x009\x003\x000\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x009\x001\x009\x000\x007\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x000\x008\x004\x001\x000\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x001\x006\x009\x003\x000\x000\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x009\x001\x009\x000\x007\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:òát&\x89\x93~C\x9e\x19Ï\x87oÿñX'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xf2\xe1t&\x89\x93~C\x9e\x19\xcf\x87o\xff\xf1X')
'PRIV:WM/WMCollectionID:òát&\x89\x93~C\x9e\x19Ï\x87oÿñX'  PRIV(owner='WM/WMCollectionID', data=b'\xf2\xe1t&\x89\x93~C\x9e\x19\xcf\x87o\xff\xf1X')
'PRIV:WM/WMContentID:µ÷2ÏU4\x01J\x92ì\x1cñ\x82¢Õö'  PRIV(owner='WM/WMContentID', data=b'\xb5\xf72\xcfU4\x01J\x92\xec\x1c\xf1\x82\xa2\xd5\xf6')
'TALB' (Album/Movie/Show title)                     'Steady Date with Tommy Sands'
'TBPM' (BPM (beats per minute))                     '137.199'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'My Love Song'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '157826'
'TPE1' (Lead performer(s)/Soloist(s))               'Tommy Sands'
'TPUB' (Publisher)                                  'Collectables'
'TRCK' (Track number/Position in set)               '328'
'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', 'celtic', 'oldies', 'pop', 'rockabilly']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'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'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.55 dB'
'TXXX:replaygain_track_peak'                        '0.615420'

========================== row from database ==========================
                                              'id'  1444556
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-328 - Tommy Sands - My Love Song.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  157
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  6311156
                                           'mtime'  1622659474
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 328 rock pop early rocknroll
                                      'tag_artist'  Tommy Sands
                                     'tag_release'  Steady Date with Tommy Sands
                                       'tag_title'  My Love Song
                                             'bpm'  137.199
                                    'search_title'  'love':2 'my':1 'song':3
                                   'search_artist'  'sands':2 'tommy':1
                                  'search_release'  'date':2 'sands':5 'steady':1 'tommy':4 'with':3
                                     'search_rest'  '00oldiepop':5 '1957':6 '328':7 'country':4 'early':10 'exotica':2 'jazz':1 'oldies':3 'pop':9 'rock':8 'rocknroll':11
                                    'search_combo'  '00oldiepop':15 '1957':16 '328':17 'country':14 'date':7C 'early':20 'exotica':12 'jazz':11 'love':2A 'my':1A 'oldies':13 'pop':19 'rock':18 'rocknroll':21 'sands':5B,10C 'song':3A 'steady':6C 'tommy':4B,9C 'with':8C
                                    'tag_tracknum'  328
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'celtic', 'oldies', 'pop', 'rockabilly']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659474.4564044  (2021-06-02 20:44:34)
                             'size'  6311156