======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '188'
                                          'artist'  'Leroy  Carr'
                                     'text_people'  ''
                                         'release'  'Leroy  Carr'
                                           'title'  'Six cold feet  in the ground'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-3', "
 "'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '130.3'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'COMM:iTunes_CDDB_1:eng'                            '0B0F9713+299529+19+150+14189+29121+44391+58540+75999+92091+107093+123596+142842+159872+173644+192089+205821+221223+241880+256908+272574+285661'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '4'
'TALB' (Album/Movie/Show title)                     'Leroy  Carr'
'TBPM' (BPM (beats per minute))                     '130.3'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'Six cold feet  in the ground'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Leroy  Carr'
'TPE2' (Band/orchestra/accompaniment)               'Leroy  Carr'
'TRCK' (Track number/Position in set)               '4'
'TXXX:MusicMagic Data'                              'AQEBYtj6gi2adohigMNUFQg5gAGAg4rX0BKdJuSCgAGw8IABiNXl5a7pgAHlGYNIjkWAAZE0k4eVlYABgAGhW/ci0XjTv4lVgAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '2'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.64 dB'
'TXXX:replaygain_track_peak'                        '0.880065'

========================== row from database ==========================
                                              'id'  1495273
                                            'path'  /data/Music/Other/Pa/Blues/Leroy  Carr/Six cold feet  in the ground.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  188
                                           'genre'  prerock-jb-blues
                                        'filesize'  3783051
                                           'mtime'  1621094224
                                   'redo_metaread'  0
                                        'rest_str'   Pa Blues prerock jb blues
                                      'tag_artist'  Leroy  Carr
                                     'tag_release'  Leroy  Carr
                                       'tag_title'  Six cold feet  in the ground
                                             'bpm'  130.3
                                    'search_title'  'cold':2 'feet':3 'ground':6 'in':4 'six':1 'the':5
                                   'search_artist'  'carr':2 'leroy':1
                                  'search_release'  'carr':2 'leroy':1
                                     'search_rest'  'blues':2 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'blues':12 'carr':8B,10C 'cold':2A 'feet':3A 'ground':6A 'in':4A 'jb':14 'leroy':7B,9C 'pa':11 'prerock':13 'six':1A 'the':5A
                                    'tag_tracknum'  4
                                      'num_images'  0
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-3', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094224.240444  (2021-05-15 17:57:04)
                             'size'  3783051