======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '213'
                                          'artist'  'Nana Mouskouri'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Dans le soleil et dans le vent'
                                           'quals'  ("['Q-HAP-3', 'Q-BUSY-3', 'Q-GRIT-2', 'q-bass-1', 'q-drums-1', 'q-other-1', "
 "'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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-greece'
                                             'bpm'  '143.3'
                                             'key'  '10B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '143.3'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-greece'
'TIT2' (Title/songname/content description)         'Dans le soleil et dans le vent'
'TKEY' (Initial key)                                '10B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nana Mouskouri'
'TXXX:MusicMagic Data'                              'AgEBXWeFgkCjefRQiJ3vWS9KBOuCwIDp9TGkkf4sgAHHNoABgAEE8q4+gAHb14DKikOAAaKewMCqaIABgAGz/B0P/QiwlJYVgAKAAZG5phjUQoYU2ac9QKDOg1SBnfhWn0QhooDx0RKPcoObBEat8IRZwFaEXoSzgAG+jceJ4tyQwIAkvVgQgvG7rVup9IACgAE='
'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:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.45 dB'
'TXXX:replaygain_track_peak'                        '0.620735'

========================== row from database ==========================
                                              'id'  1495142
                                            'path'  /data/Music/Other/Pa/All/Nana Mouskouri/Dans le soleil et dans le vent.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  213
                                           'genre'  loc-eur-greece
                                        'filesize'  4277658
                                           'mtime'  1621630394
                                   'redo_metaread'  0
                                        'rest_str'   Pa All loc eur greece
                                      'tag_artist'  Nana Mouskouri
                                     'tag_release'  None
                                       'tag_title'  Dans le soleil et dans le vent
                                             'bpm'  143.3
                                    'search_title'  'dans':1 'et':4 'le':2 'soleil':3 'vent':5
                                   'search_artist'  'mouskouri':2 'nana':1
                                  'search_release'  
                                     'search_rest'  'all':2 'eur':4 'greece':5 'loc':3 'pa':1
                                    'search_combo'  'all':9 'dans':1A 'et':4A 'eur':11 'greece':12 'le':2A 'loc':10 'mouskouri':7B 'nana':6B 'pa':8 'soleil':3A 'vent':5A
                                    '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-1', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630394.4538805  (2021-05-21 22:53:14)
                             'size'  4277658