======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '134'
                                          'artist'  'The Olympics'
                                     'text_people'  'Goldsmith/Huey "Piano" Smith & the Clowns'
                                         'release'  '20 Great Doo-Wop Recordings'
                                           'title'  'Stay Where You Are'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'all', 'soul', 'northern soul', '7soul']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1961'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '138.040'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 0000071E 0000071F 00003C0B'
'COMM:iTunNORM:eng'                                 (' 0000071E 0000071F 00003C0B 00003C0B 00010709 00010709 00005B29 00005B29 '
 '00006269 00006269')
'PRIV:AverageLevel:n\x10\x00\x00'                   PRIV(owner='AverageLevel', data=b'n\x10\x00\x00')
'PRIV:PeakValue:)[\x00\x00'                         PRIV(owner='PeakValue', data=b')[\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\x007\x000\x006\x008\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x002\x004\x007\x008\x007\x005\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x007\x000\x006\x008\x007\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x004\x002\x004\x007\x008\x007\x005\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:t(\x90Èq\x1e«O¶r\x90ÂÓ0qA'  PRIV(owner='WM/WMCollectionGroupID', data=b't(\x90\xc8q\x1e\xabO\xb6r\x90\xc2\xd30qA')
'PRIV:WM/WMCollectionID:t(\x90Èq\x1e«O¶r\x90ÂÓ0qA'  PRIV(owner='WM/WMCollectionID', data=b't(\x90\xc8q\x1e\xabO\xb6r\x90\xc2\xd30qA')
'PRIV:WM/WMContentID:@\x99áù¿~(N²3Jn\x7fdj\x03'     PRIV(owner='WM/WMContentID', data=b'@\x99\xe1\xf9\xbf~(N\xb23Jn\x7fdj\x03')
'TALB' (Album/Movie/Show title)                     '20 Great Doo-Wop Recordings'
'TBPM' (BPM (beats per minute))                     '138.040'
'TCOM' (Composer)                                   'Goldsmith/Huey "Piano" Smith & the Clowns'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1961'
'TIT2' (Title/songname/content description)         'Stay Where You Are'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Olympics'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Cascade'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'all', 'soul', 'northern soul', '7soul']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.93 dB'
'TXXX:replaygain_track_peak'                        '0.423479'

========================== row from database ==========================
                                              'id'  1331923
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/20 great doo wop recordings - 09 - stay where you are (the olympics).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  134
                                           'genre'  funk or soul
                                        'filesize'  3240354
                                           'mtime'  1628357947
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] great doo wop recordings 09 stay where you are (the olympics) funk soul
                                      'tag_artist'  The Olympics
                                     'tag_release'  20 Great Doo-Wop Recordings
                                       'tag_title'  Stay Where You Are
                                             'bpm'  138.04
                                    'search_title'  'are':4 'stay':1 'where':2 'you':3
                                   'search_artist'  'olympics':2 'the':1
                                  'search_release'  '20':1 'doo':3 'doowop':5 'great':2 'recordings':6 'wop':4
                                     'search_rest'  '00poprockelectronic':1 'are':14 'doo':8 'files':5,6 'funk':19 'great':7 'loose':3,4 'olympics':17,18 'recordings':10 'soul':20 'stay':11 'the':15,16 'unsorted':2 'where':12 'wop':9 'you':13
                                    'search_combo'  '00poprockelectronic':13 '20':7C 'are':4A,26 'doo':9C,20 'doowop':11C 'files':17,18 'funk':31 'great':8C,19 'loose':15,16 'olympics':6B,29,30 'recordings':12C,22 'soul':32 'stay':1A,23 'the':5B,27,28 'unsorted':14 'where':2A,24 'wop':10C,21 'you':3A,25
                                    'tag_tracknum'  9
                                      '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-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'all', 'soul', 'northern soul', '7soul']
                                        'tag_date'  1961
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357946.9021397  (2021-08-07 19:39:06)
                             'size'  3240354