======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '200'
                                          'artist'  'Nana Mouskouri'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Mon enfant'
                                           'quals'  ("['Q-HAP-3', 'Q-BUSY-3', 'Q-GRIT-2', 'q-bass-1', 'q-drums-1', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', 'Q-PLAY-2', 'Q-CHART-2', "
 "'Q-JZFKS-1', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-3']")
                                      'lastfmtags'  "['female vocalists', 'greek', 'pop', 'jazz', 'french']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-greece'
                                             'bpm'  '122.0'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '122.0'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-greece'
'TIT2' (Title/songname/content description)         'Mon enfant'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nana Mouskouri'
'TXXX:MusicMagic Data'                              'AgEBYgAqgrykxfZQiF/nJxIAgAGBJYB17qahtPmUgAHgC8klgvP8WrNPgAG6G4EFhm+AAa5dqP/lGYABgAGfqweO+nukl5p6gAKAAYY6pzTZvIY21Vwn9KaFgZCA3PSwo5oGo4BMz8GXk4TpAAGvLIE5yOKBaIXbgAGrXbEQzCyFG4ABsuwRO/FypxKa+4ACgAE='
'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'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:lastfmtags'                                   ['female vocalists', 'greek', 'pop', 'jazz', 'french']
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.44 dB'
'TXXX:replaygain_track_peak'                        '0.568051'

========================== row from database ==========================
                                              'id'  1495122
                                            'path'  /data/Music/Other/Pa/All/Nana Mouskouri/Mon enfant.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  200
                                           'genre'  loc-eur-greece
                                        'filesize'  4025645
                                           'mtime'  1621630395
                                   'redo_metaread'  0
                                        'rest_str'   Pa All loc eur greece
                                      'tag_artist'  Nana Mouskouri
                                     'tag_release'  None
                                       'tag_title'  Mon enfant
                                             'bpm'  122.0
                                    'search_title'  'enfant':2 'mon':1
                                   'search_artist'  'mouskouri':2 'nana':1
                                  'search_release'  
                                     'search_rest'  'all':2 'eur':4 'greece':5 'loc':3 'pa':1
                                    'search_combo'  'all':6 'enfant':2A 'eur':8 'greece':9 'loc':7 'mon':1A 'mouskouri':4B 'nana':3B 'pa':5
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-3', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-2', 'q-drums-1', 'Q-SYN-1', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  ['female vocalists', 'greek', 'pop', 'jazz', 'french']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630395.2838879  (2021-05-21 22:53:15)
                             'size'  4025645