======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '150'
                                          'artist'  'Maurice Larcange'
                                     'text_people'  ''
                                         'release'  "Les rois de l'accordéon Vol 2"
                                           'title'  'Dédé de Montmartre - Valse'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-2', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-3', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['instrumental', 'summer', 'accordeon', 'french', 'accordion']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '10'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'mi-accordeon'
                                             'bpm'  '99.714'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000001F1 0000022F 00000F8D'
'COMM:iTunNORM:eng'                                 (' 000001F1 0000022F 00000F8D 00000F32 000222F7 000222F7 00004023 00004200 '
 '000222F7 000222F7')
'TALB' (Album/Movie/Show title)                     "Les rois de l'accordéon Vol 2"
'TBPM' (BPM (beats per minute))                     '99.714'
'TCON' (Content type, a.k.a. Genre)                 'mi-accordeon'
'TIT2' (Title/songname/content description)         'Dédé de Montmartre - Valse'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '150021'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Maurice Larcange'
'TRCK' (Track number/Position in set)               '10'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['instrumental', 'summer', 'accordeon', 'french', 'accordion']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.26 dB'
'TXXX:replaygain_track_peak'                        '0.885527'

========================== row from database ==========================
                                              'id'  935457
                                            'path'  /data/Music/Bulk/00localcharacter/00mid-north-europe/00french/Accordeón alegre/Maurice Larcange - Dédé de Montma.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  150
                                           'genre'  mi-accordeon
                                        'filesize'  2402208
                                           'mtime'  1620528257
                                   'redo_metaread'  0
                                        'rest_str'   00localcharacter 00mid north europe 00french Accordeón alegre mi accordeon
                                      'tag_artist'  Maurice Larcange
                                     'tag_release'  Les rois de l'accordéon Vol 2
                                       'tag_title'  Dédé de Montmartre - Valse
                                             'bpm'  99.714
                                    'search_title'  'de':3 'dede':1,2 'montmartre':4 'valse':5
                                   'search_artist'  'larcange':2 'maurice':1
                                  'search_release'  '2':11 'accordeon':5,8 'de':3 'l':4,7 'laccordeon':6,9 'les':1 'rois':2 'vol':10
                                     'search_rest'  '00french':4 '00mid':1 'accordeon':5,6 'alegre':7 'europe':3 'mi':8 'north':2
                                    'search_combo'  '00french':22 '00mid':19 '2':18C 'accordeon':12C,15C,23,24 'alegre':25 'de':3A,10C 'dede':1A,2A 'europe':21 'l':11C,14C 'laccordeon':13C,16C 'larcange':7B 'les':8C 'maurice':6B 'mi':26 'montmartre':4A 'north':20 'rois':9C 'valse':5A 'vol':17C
                                    'tag_tracknum'  10
                                      'num_images'  0
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-4', 'q-grit-1']
                                      'lastfmtags'  ['instrumental', 'summer', 'accordeon', 'french', 'accordion']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620528256.7305105  (2021-05-09 04:44:16)
                             'size'  2402208