======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '193'
                                          'artist'  'Nana Mouskouri'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  "Il n'est pas trop tard pour vivre"
                                           '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'loc-eur-greece'
                                             'bpm'  '141.0'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '141.0'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-greece'
'TIT2' (Title/songname/content description)         "Il n'est pas trop tard pour vivre"
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Nana Mouskouri'
'TXXX:MusicMagic Data'                              'AgEBWNQxgsero7cHhGvvNTU4v9aBCIDp8Cyg0AQKgMjIYbM0heT0MK5FgAHYxIFPhuOAAajLqMGsA4ABgAHRhxgy1/S4XZhggAKAAZjhpgjTN4YO09lEGJrUg9aBl/kBnvYq0IDz0aqMzoQOA/Gt9IU9vUuFDYPWgAHB9sa36/mYJ4Aou5wRtPIGqwmtQ4ACgAE='
'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'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.25 dB'
'TXXX:replaygain_track_peak'                        '0.612910'

========================== row from database ==========================
                                              'id'  1495488
                                            'path'  /data/Music/Other/Pa/All/Nana Mouskouri/Il n'est pas trop tard pour vivre.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  193
                                           'genre'  loc-eur-greece
                                        'filesize'  3883739
                                           'mtime'  1621630395
                                   'redo_metaread'  0
                                        'rest_str'   Pa All loc eur greece
                                      'tag_artist'  Nana Mouskouri
                                     'tag_release'  None
                                       'tag_title'  Il n'est pas trop tard pour vivre
                                             'bpm'  141.0
                                    'search_title'  'est':3 'il':1 'n':2 'nest':4 'pas':5 'pour':8 'tard':7 'trop':6 'vivre':9
                                   'search_artist'  'mouskouri':2 'nana':1
                                  'search_release'  
                                     'search_rest'  'all':2 'eur':4 'greece':5 'loc':3 'pa':1
                                    'search_combo'  'all':13 'est':3A 'eur':15 'greece':16 'il':1A 'loc':14 'mouskouri':11B 'n':2A 'nana':10B 'nest':4A 'pa':12 'pas':5A 'pour':8A 'tard':7A 'trop':6A 'vivre':9A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9B
                                           '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'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621630394.703907  (2021-05-21 22:53:14)
                             'size'  3883739