======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '97'
                                          'artist'  'TV Theme Songs'
                                     'text_people'  'C. Fox/P. Williams'
                                         'release'  "Television's Greatest Hits 70's & 80's"
                                           'title'  'Love Boat'
                                           'quals'  ("['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '46'
                                      'tracktotal'  ''
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  ''
                                             'bpm'  '118.152'
                                             'key'  '4B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 00000249 00000220 000013CE'
'COMM:iTunNORM:eng'                                 (' 00000249 00000220 000013CE 00001152 0000AA28 0000AA28 00004C90 00004C64 '
 '000049BD 0000A929')
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'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 \x00 \x008\x004\x001\x003\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00M\x00S\x00T\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x006\x000\x001\x003\x005\x000\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x008\x004\x001\x003\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00M\x00S\x00T\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x006\x000\x001\x003\x005\x000\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:î\x0f8VmÊ°J\x82LÎêp\x9e±¢'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xee\x0f8Vm\xca\xb0J\x82L\xce\xeap\x9e\xb1\xa2')
'PRIV:WM/WMCollectionID:î\x0f8VmÊ°J\x82LÎêp\x9e±¢'  PRIV(owner='WM/WMCollectionID', data=b'\xee\x0f8Vm\xca\xb0J\x82L\xce\xeap\x9e\xb1\xa2')
'PRIV:WM/WMContentID:\x01\x9f\x17þ\x15O^A¿\x07¿\x94\x92|¨\n'  PRIV(owner='WM/WMContentID', data=b'\x01\x9f\x17\xfe\x15O^A\xbf\x07\xbf\x94\x92|\xa8\n')
'TALB' (Album/Movie/Show title)                     "Television's Greatest Hits 70's & 80's"
'TBPM' (BPM (beats per minute))                     '118.152'
'TCOM' (Composer)                                   'C. Fox/P. Williams'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'Love Boat'
'TKEY' (Initial key)                                '4B'
'TLEN' (Length)                                     '97227'
'TPE1' (Lead performer(s)/Soloist(s))               'TV Theme Songs'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'TVT'
'TRCK' (Track number/Position in set)               '46'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.57 dB'
'TXXX:replaygain_track_peak'                        '0.598150'

========================== row from database ==========================
                                              'id'  1288147
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/love boat.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  97
                                           'genre'  
                                        'filesize'  1559474
                                           'mtime'  1652397997
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] love boat
                                      'tag_artist'  TV Theme Songs
                                     'tag_release'  Television's Greatest Hits 70's & 80's
                                       'tag_title'  Love Boat
                                             'bpm'  118.152
                                    'search_title'  'boat':2 'love':1
                                   'search_artist'  'songs':3 'theme':2 'tv':1
                                  'search_release'  '70':6 '70s':8 '80':9 '80s':11 'greatest':4 'hits':5 's':2,7,10 'television':1 'televisions':3
                                     'search_rest'  '00poprockelectronic':1 'boat':8 'files':5,6 'loose':3,4 'love':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':17 '70':11C '70s':13C '80':14C '80s':16C 'boat':2A,24 'files':21,22 'greatest':9C 'hits':10C 'loose':19,20 'love':1A,23 's':7C,12C,15C 'songs':5B 'television':6C 'televisions':8C 'theme':4B 'tv':3B 'unsorted':18
                                    'tag_tracknum'  46
                                      'num_images'  0
                                             'key'  4B
                                           'quals'  ['Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  []
                                        'tag_date'  1990
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397996.88987  (2022-05-13 01:26:36)
                             'size'  1559474