======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '66'
                                          'artist'  'Neil Armstrong'
                                     'text_people'  ''
                                         'release'  'Historical speeches'
                                           'title'  'Neil Armstrong - The Moon Landing'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-syn-1', 'q-bass-1', "
 "'q-busy-2', 'q-grit-2', 'q-play-1', 'q-chart-1', 'q-drums-1', 'q-other-1', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['all', 'spotify']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'nonmusic-speech-speeches'
                                             'bpm'  '84.455'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Historical speeches'
'TBPM' (BPM (beats per minute))                     '84.455'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-speech-speeches'
'TIT2' (Title/songname/content description)         'Neil Armstrong - The Moon Landing'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Neil Armstrong'
'TXXX:Mp3gain_minmax'                               '000,186'
'TXXX:Mp3gain_undo'                                 '-001,-001,N'
'TXXX:Other'                                        'Great Speeches'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['all', 'spotify']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '1'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.39 dB'
'TXXX:replaygain_track_peak'                        '0.591093'

========================== row from database ==========================
                                              'id'  957410
                                            'path'  /data/Music/Bulk/0nonmusic/00speeches, fairly known people/Neil Armstrong - The Moon Landing.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  66
                                           'genre'  nonmusic-speech-speeches
                                        'filesize'  1332775
                                           'mtime'  1620562159
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00speeches, fairly known people nonmusic
                                      'tag_artist'  Neil Armstrong
                                     'tag_release'  Historical speeches
                                       'tag_title'  Neil Armstrong - The Moon Landing
                                             'bpm'  84.455
                                    'search_title'  'armstrong':2 'landing':5 'moon':4 'neil':1 'the':3
                                   'search_artist'  'armstrong':2 'neil':1
                                  'search_release'  'historical':1 'speeches':2
                                     'search_rest'  '00speeches':2,3 '0nonmusic':1 'fairly':4 'known':5 'nonmusic':7 'people':6
                                    'search_combo'  '00speeches':11,12 '0nonmusic':10 'armstrong':2A,7B 'fairly':13 'historical':8C 'known':14 'landing':5A 'moon':4A 'neil':1A,6B 'nonmusic':16 'people':15 'speeches':9C 'the':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-1', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['all', 'spotify']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562158.5629983  (2021-05-09 14:09:18)
                             'size'  1332775