======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '110'
                                          'artist'  'The Three Chuckles'
                                     'text_people'  ''
                                         'release'  'RD-CD-0007 - She Loves To Rock'
                                           'title'  'Cinnamon Sinner'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                                      'lastfmtags'  "['50s rock n roll']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  ''
                                            'date'  '1955'
                                        'comments'  ''
                                           'genre'  'set-th-candy'
                                             'bpm'  '142.708'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'PRIV:Amadeus II 3.5:pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA'  PRIV(owner='Amadeus II 3.5', data=b'pdat\x00\x00\x00\x1cAHCGDGCHAAAAAAGAAACPPDAIAAAA')
'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')
'TALB' (Album/Movie/Show title)                     'RD-CD-0007 - She Loves To Rock'
'TBPM' (BPM (beats per minute))                     '142.708'
'TCON' (Content type, a.k.a. Genre)                 'set-th-candy'
'TDRC' (Recording time)                             '1955'
'TIT2' (Title/songname/content description)         'Cinnamon Sinner'
'TKEY' (Initial key)                                '7B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Three Chuckles'
'TRCK' (Track number/Position in set)               '7'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   '50s rock n roll'
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.45 dB'
'TXXX:replaygain_track_peak'                        '0.461438'

========================== row from database ==========================
                                              'id'  735781
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/sweets/The Three Chuckles - Cinnamon Sinner  SOME POPS.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  110
                                           'genre'  set-th-candy
                                        'filesize'  2650601
                                           'mtime'  1620343132
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country sweets SOME POPS set th candy
                                      'tag_artist'  The Three Chuckles
                                     'tag_release'  RD-CD-0007 - She Loves To Rock
                                       'tag_title'  Cinnamon Sinner
                                             'bpm'  142.708
                                    'search_title'  'cinnamon':1 'sinner':2
                                   'search_artist'  'chuckles':3 'the':1 'three':2
                                  'search_release'  '0007':3 'cd':2 'loves':6 'rd':1 'rdcd0007':4 'rock':8 'she':5 'to':7
                                     'search_rest'  'candy':10 'country':4 'exotica':2 'jazz':1 'oldies':3 'pops':7 'set':8 'some':6 'sweets':5 'th':9
                                    'search_combo'  '0007':8C 'candy':23 'cd':7C 'chuckles':5B 'cinnamon':1A 'country':17 'exotica':15 'jazz':14 'loves':11C 'oldies':16 'pops':20 'rd':6C 'rdcd0007':9C 'rock':13C 'set':21 'she':10C 'sinner':2A 'some':19 'sweets':18 'th':22 'the':3B 'three':4B 'to':12C
                                    'tag_tracknum'  7
                                      'num_images'  0
                                             'key'  7B
                                           '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-2', 'q-other-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['50s rock n roll']
                                        'tag_date'  1955
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620343131.6379757  (2021-05-07 01:18:51)
                             'size'  2650601