======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '77'
                                          'artist'  'Paul Piot & Michel Roy'
                                     'text_people'  ''
                                         'release'  'Nanarland Radioblog'
                                           'title'  'Introduction'
                                           'quals'  ("['Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-UNU-2', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'soundtrack-web'
                                             'bpm'  '114.9'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         'Hommage aux égarés...'
'TALB' (Album/Movie/Show title)                     'Nanarland Radioblog'
'TBPM' (BPM (beats per minute))                     '114.9'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-web'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         'Introduction'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Paul Piot & Michel Roy'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.90 dB'
'TXXX:replaygain_track_peak'                        '0.291135'

========================== row from database ==========================
                                              'id'  1362556
                                            'path'  /data/Music/Bulk/0soundtrack/Nanarland Radioblog/Devil_Story_Introduction.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  77
                                           'genre'  soundtrack-web
                                        'filesize'  936433
                                           'mtime'  1620329146
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Devil_Story_Introduction soundtrack web
                                      'tag_artist'  Paul Piot & Michel Roy
                                     'tag_release'  Nanarland Radioblog
                                       'tag_title'  Introduction
                                             'bpm'  114.9
                                    'search_title'  'introduction':1
                                   'search_artist'  'michel':3 'paul':1 'piot':2 'roy':4
                                  'search_release'  'nanarland':1 'radioblog':2
                                     'search_rest'  '0soundtrack':1 'devil':2 'introduction':4 'soundtrack':5 'story':3 'web':6
                                    'search_combo'  '0soundtrack':8 'devil':9 'introduction':1A,11 'michel':4B 'nanarland':6C 'paul':2B 'piot':3B 'radioblog':7C 'roy':5B 'soundtrack':12 'story':10 'web':13
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620329145.5684144  (2021-05-06 21:25:45)
                             'size'  936433