======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '233'
                                          'artist'  'Jacques  Brel'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'La valse a mille temps'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-4', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-2', 'q-piano-1', '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'  '5'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '85.3'
                                             'key'  'F#m'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '85.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TENC' (Encoded by)                                 'iTunes v4.2.0.72'
'TIT2' (Title/songname/content description)         'La valse a mille temps'
'TKEY' (Initial key)                                'F#m'
'TPE1' (Lead performer(s)/Soloist(s))               'Jacques  Brel'
'TRCK' (Track number/Position in set)               '5'
'TXXX:MusicMagic Data'                              'AgEA1fmuiQCTfp1AgWdSdivRgAGBnYQS8EChAjF6gG7cQ6STgvMGZ7aqi73edZd/g2iAAcFvj/X7HbGWgAGmhQIZ/yOkw6pxgAKAAY/loRDKz4V/Kls1kYLigbCFQv4VoUYfgYFk3x2gAYLzC7SzmYNN2cGRpojihJTEML9+2vCXy4F1suEGm/yds4aqt4OVhcQ='
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.55 dB'
'TXXX:replaygain_track_peak'                        '0.712519'

========================== row from database ==========================
                                              'id'  1495041
                                            'path'  /data/Music/Other/Pa/France/Jacques  Brel/05 La valse a mille temps.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  233
                                           'genre'  loc-eur-france
                                        'filesize'  4670039
                                           'mtime'  1621094186
                                   'redo_metaread'  0
                                        'rest_str'   Pa France 05 loc eur france
                                      'tag_artist'  Jacques  Brel
                                     'tag_release'  None
                                       'tag_title'  La valse a mille temps
                                             'bpm'  85.3
                                    'search_title'  'a':3 'la':1 'mille':4 'temps':5 'valse':2
                                   'search_artist'  'brel':2 'jacques':1
                                  'search_release'  
                                     'search_rest'  'eur':4 'france':2 'loc':3 'pa':1
                                    'search_combo'  'a':3A 'brel':7B 'eur':11 'france':9 'jacques':6B 'la':1A 'loc':10 'mille':4A 'pa':8 'temps':5A 'valse':2A
                                    'tag_tracknum'  5
                                      'num_images'  0
                                             'key'  F#m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', '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-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-4']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621094186.016568  (2021-05-15 17:56:26)
                             'size'  4670039