======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '228'
                                          'artist'  'Calogero'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Aussi Libre Que Moi[french]'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['français', 'chanson francaise', 'pop', 'french', 'rock', 'francophone']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2008'
                                        'comments'  ''
                                           'genre'  'loc-eur-france'
                                             'bpm'  '132.444'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '132.444'
'TCON' (Content type, a.k.a. Genre)                 'loc-eur-france'
'TDRC' (Recording time)                             '2008'
'TIT2' (Title/songname/content description)         'Aussi Libre Que Moi[french]'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Calogero'
'TPE2' (Band/orchestra/accompaniment)               'Calogero'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['français', 'chanson francaise', 'pop', 'french', 'rock', 'francophone']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.05 dB'
'TXXX:replaygain_track_peak'                        '0.423022'

========================== row from database ==========================
                                              'id'  1349865
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Calogero - Aussi Libre Que Moi[French] [].mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  228
                                           'genre'  loc-eur-france
                                        'filesize'  5496832
                                           'mtime'  1652397947
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] Moi[French] [] loc eur france
                                      'tag_artist'  Calogero
                                     'tag_release'  None
                                       'tag_title'  Aussi Libre Que Moi[french]
                                             'bpm'  132.444
                                    'search_title'  'aussi':1 'french':5 'libre':2 'moi':4 'moifrench':6 'que':3
                                   'search_artist'  'calogero':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'eur':11 'files':5,6 'france':12 'french':8 'loc':10 'loose':3,4 'moi':7 'moifrench':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 'aussi':1A 'calogero':7B 'eur':18 'files':12,13 'france':19 'french':5A,15 'libre':2A 'loc':17 'loose':10,11 'moi':4A,14 'moifrench':6A,16 'que':3A 'unsorted':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-2', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']
                                      'lastfmtags'  ['français', 'chanson francaise', 'pop', 'french', 'rock', 'francophone']
                                        'tag_date'  2008
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1652397947.3529723  (2022-05-13 01:25:47)
                             'size'  5496832