======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '105'
                                          'artist'  'Megaman II'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Heat Man (Techno Mix)'
                                           'quals'  ("['Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '108.879'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '108.879'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TIT2' (Title/songname/content description)         'Heat Man (Techno Mix)'
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Megaman II'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.75 dB'
'TXXX:replaygain_track_peak'                        '0.723877'

========================== row from database ==========================
                                              'id'  789230
                                            'path'  /data/Music/Bulk/0soundtrack/megaman music/Megaman II - Heat Man (Techno Mix).mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  105
                                           'genre'  soundtrack-video
                                        'filesize'  1685467
                                           'mtime'  1620334500
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack megaman music soundtrack video
                                      'tag_artist'  Megaman II
                                     'tag_release'  None
                                       'tag_title'  Heat Man (Techno Mix)
                                             'bpm'  108.879
                                    'search_title'  'heat':1 'man':2 'mix':5,6 'techno':3,4
                                   'search_artist'  'ii':2 'megaman':1
                                  'search_release'  
                                     'search_rest'  '0soundtrack':1 'megaman':2 'music':3 'soundtrack':4 'video':5
                                    'search_combo'  '0soundtrack':9 'heat':1A 'ii':8B 'man':2A 'megaman':7B,10 'mix':5A,6A 'music':11 'soundtrack':12 'techno':3A,4A 'video':13
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620334500.0767775  (2021-05-06 22:55:00)
                             'size'  1685467