======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '10'
                                          'artist'  '[unknown]'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  '10 second silence'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-1', 'q-grit-1', 'q-play-1', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'nonmusic-unsorted'
                                             'bpm'  '146.000'
                                             'key'  ''
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '146.000'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-unsorted'
'TIT2' (Title/songname/content description)         '10 second silence'
'TPE1' (Lead performer(s)/Soloist(s))               '[unknown]'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '1'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_album_peak'                        '0.000000'
'TXXX:replaygain_track_peak'                        '0.000000'

========================== row from database ==========================
                                              'id'  398802
                                            'path'  /data/Music/Bulk/0nonmusic/silence_10sec.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  10
                                           'genre'  nonmusic-unsorted
                                        'filesize'  163193
                                           'mtime'  1678464726
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic silence_10sec nonmusic unsorted
                                      'tag_artist'  [unknown]
                                     'tag_release'  None
                                       'tag_title'  10 second silence
                                             'bpm'  146.0
                                    'search_title'  'second':1 'silence':2
                                   'search_artist'  'unknown':1,2
                                  'search_release'  
                                     'search_rest'  '0nonmusic':1 '10sec':3 'nonmusic':4 'silence':2 'unsorted':5
                                    'search_combo'  '0nonmusic':5 '10sec':7 'nonmusic':8 'second':1A 'silence':2A,6 'unknown':3B,4B 'unsorted':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  
                                           'quals'  ['Q-HAP-3', 'Q-OLDST-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'q-syn-1', 'q-bass-1', 'q-busy-1', 'q-grit-1', 'q-play-1', 'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']
                                      'lastfmtags'  ['mysterious', 'unknown', 'all', 'mistagged artist', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678464726.052018  (2023-03-10 17:12:06)
                             'size'  163193