======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '93'
                                          'artist'  'Mega Man'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  ''
                                           'quals'  ("['Q-UNU-1', 'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'Q-JZFKS-1', 'Q-OLDST-3', 'q-chart-2', 'q-drums-4', 'q-other-3', "
 "'q-piano-1', 'q-vocals-1', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-1']")
                                      'lastfmtags'  "['8bit', 'soundtrack', 'video games', 'video game', 'epic']"
                                     'discogstags'  "['progressive house', 'eurodance', 'acid', 'electronic', 'happy hardcore']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-game;electronic-we-beeps or chip or pico'
                                             'bpm'  '99.861'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '99.861'
'TCON' (Content type, a.k.a. Genre)                 ['soundtrack-game', 'electronic-we-beeps or chip or pico']
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mega Man'
'TXXX:Mp3gain_minmax'                               '127,184'
'TXXX:Mp3gain_undo'                                 '+003,+003,N'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['progressive house', 'eurodance', 'acid', 'electronic', 'happy hardcore']
'TXXX:lastfmtags'                                   ['8bit', 'soundtrack', 'video games', 'video game', 'epic']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.52 dB'
'TXXX:replaygain_track_peak'                        '0.567579'

========================== row from database ==========================
                                              'id'  793930
                                            'path'  /data/Music/Bulk/0soundtrack/megaman music/Mega Man.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  93
                                           'genre'  soundtrack-game;electronic-we-beeps or chip or pico
                                        'filesize'  1505042
                                           'mtime'  1620334500
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack megaman music soundtrack game;electronic we beeps or chip or pico
                                      'tag_artist'  Mega Man
                                     'tag_release'  None
                                       'tag_title'  None
                                             'bpm'  99.861
                                    'search_title'  None
                                   'search_artist'  'man':2 'mega':1
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'beeps':10 'chip':12 'electronic':6,8 'game':5,7 'megaman':2 'music':3 'or':11 'pico':13 'soundtrack':4 'we':9
                                    'search_combo'  '0soundtrack':3 'beeps':12 'chip':14 'electronic':8,10 'game':7,9 'man':2B 'mega':1B 'megaman':4 'music':5 'or':13 'pico':15 'soundtrack':6 'we':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-piano-1', 'q-syn-3', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['8bit', 'soundtrack', 'video games', 'video game', 'epic']
                                        'tag_date'  
                                     'discogstags'  ['progressive house', 'eurodance', 'acid', 'electronic', 'happy hardcore']

============================== file details ==============================
                                           'mtime'  1620334499.9470088  (2021-05-06 22:54:59)
                             'size'  1505042