======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '147'
                                          'artist'  'Abraham Lincoln'
                                     'text_people'  ''
                                         'release'  'Historical speeches'
                                           'title'  'The Gettysburg Address'
                                           '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'  "['electronic', 'free jazz', 'neofolk', 'deathcore', 'post industrial']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'nonmusic-speech-speeches'
                                             'bpm'  '138.040'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Historical speeches'
'TBPM' (BPM (beats per minute))                     '138.040'
'TCON' (Content type, a.k.a. Genre)                 'nonmusic-speech-speeches'
'TIT2' (Title/songname/content description)         'The Gettysburg Address'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'Abraham Lincoln'
'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'                                   ['electronic', 'free jazz', 'neofolk', 'deathcore', 'post industrial']
'TXXX:other'                                        'Great Speeches'
'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'                        '+1.59 dB'
'TXXX:replaygain_track_peak'                        '0.449273'

========================== row from database ==========================
                                              'id'  956984
                                            'path'  /data/Music/Bulk/0nonmusic/00speeches, fairly known people/Abraham Lincoln - The Gettysburg Address (r.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  147
                                           'genre'  nonmusic-speech-speeches
                                        'filesize'  2360993
                                           'mtime'  1620562141
                                   'redo_metaread'  0
                                        'rest_str'   0nonmusic 00speeches, fairly known people (r nonmusic
                                      'tag_artist'  Abraham Lincoln
                                     'tag_release'  Historical speeches
                                       'tag_title'  The Gettysburg Address
                                             'bpm'  138.04
                                    'search_title'  'address':3 'gettysburg':2 'the':1
                                   'search_artist'  'abraham':1 'lincoln':2
                                  'search_release'  'historical':1 'speeches':2
                                     'search_rest'  '00speeches':2,3 '0nonmusic':1 'fairly':4 'known':5 'nonmusic':9 'people':6 'r':7,8
                                    'search_combo'  '00speeches':9,10 '0nonmusic':8 'abraham':4B 'address':3A 'fairly':11 'gettysburg':2A 'historical':6C 'known':12 'lincoln':5B 'nonmusic':16 'people':13 'r':14,15 'speeches':7C 'the':1A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11A
                                           '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'  ['electronic', 'free jazz', 'neofolk', 'deathcore', 'post industrial']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620562141.3735914  (2021-05-09 14:09:01)
                             'size'  2360993