======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '270'
                                          'artist'  'Jacques  Brel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'La chanson des vieux amants'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-4', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-3', 'q-piano-2', 'q-vocals-4', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-3']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '19'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '89.7'
                                             'key'  'C m'  (5A)
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '89.7'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'La chanson des vieux amants'
'TKEY' (Initial key)                                'C m'
'TPE1' (Lead performer(s)/Soloist(s))               'Jacques  Brel'
'TRCK' (Track number/Position in set)               '19'
'TXXX:MusicMagic Data'                              'AgEAANa+lCmqo8hrhCpTJ0gxgAGBmYkJCq2fbCVRgAHZLqSTgvMT462ggAHVVYE6ikiAAbnDB+DJ5IABgAG6bRV74nSz6KHfnJOuF4xHoPDQaoYnD9w1PYEXgZ+EBP2wocgg2IE72YmpJoI3Cr2zPIQe2lqN+4gPgAG+2L4Z2geXb4CtruMIz/umsdynUoOVhcQ='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.32 dB'
'TXXX:replaygain_track_peak'                        '0.776113'

========================== row from database ==========================
                                              'id'  1495104
                                            'path'  /data/Music/Other/Pa/France/Jacques  Brel/19 La chanson des vieux amants.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  270
                                           'genre'  loc-eur-france
                                        'filesize'  5423427
                                           'mtime'  1621094187
                                   'redo_metaread'  0
                                        'rest_str'   Pa France 19 loc eur france
                                      'tag_artist'  Jacques  Brel
                                     'tag_release'  None
                                       'tag_title'  La chanson des vieux amants
                                             'bpm'  89.7
                                    'search_title'  'amants':5 'chanson':2 'des':3 'la':1 'vieux':4
                                   'search_artist'  'brel':2 'jacques':1
                                  'search_release'  
                                     'search_rest'  '19':3 'eur':5 'france':2 'loc':4 'pa':1
                                    'search_combo'  '19':10 'amants':5A 'brel':7B 'chanson':2A 'des':3A 'eur':12 'france':9 'jacques':6B 'la':1A 'loc':11 'pa':8 'vieux':4A
                                    'tag_tracknum'  19
                                      'num_images'  0
                                             'key'  C m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-2', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094187.230223  (2021-05-15 17:56:27)
                             'size'  5423427