======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '601'
                                          'artist'  'Horrific Child'
                                     'text_people'  ''
                                         'release'  'Music for Maniacs'
                                           'title'  'Letrange Monsieur Whinster excerpt'
                                           'quals'  ("['Q-HAP-2', 'Q-LOCALNESS-2', 'Q-JZFKS-3', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['avant-garde', 'progressive rock', 'psychedelic', 'sound collage', 'horror']"
                                     'discogstags'  "['experimental', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'prerock-jb-blues'
                                             'bpm'  '138.7'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Music for Maniacs'
'TBPM' (BPM (beats per minute))                     '138.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-blues'
'TDRC' (Recording time)                             '2010'
'TIT2' (Title/songname/content description)         'Letrange Monsieur Whinster excerpt'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Horrific Child'
'TPE2' (Band/orchestra/accompaniment)               'Horrific Child'
'TPOS' (Part of a set)                              '1/1'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['experimental', 'rock']
'TXXX:lastfmtags'                                   ['avant-garde', 'progressive rock', 'psychedelic', 'sound collage', 'horror']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+2.56 dB'
'TXXX:replaygain_track_peak'                        '0.466602'

========================== row from database ==========================
                                              'id'  649080
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/music for maniacs/Horrific_Child_-_Letrange_Monsieur_Whinster_excerpt.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  601
                                           'genre'  prerock-jb-blues
                                        'filesize'  14445066
                                           'mtime'  1620402947
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm music maniacs Horrific_Child_ _Letrange_Monsieur_Whinster_excerpt prerock jb blues
                                      'tag_artist'  Horrific Child
                                     'tag_release'  Music for Maniacs
                                       'tag_title'  Letrange Monsieur Whinster excerpt
                                             'bpm'  138.7
                                    'search_title'  'excerpt':4 'letrange':1 'monsieur':2 'whinster':3
                                   'search_artist'  'child':2 'horrific':1
                                  'search_release'  'for':2 'maniacs':3 'music':1
                                     'search_rest'  'blues':11 'child':4 'excerpt':8 'horrific':3 'jb':10 'letrange':5 'maniacs':2 'monsieur':6 'music':1 'prerock':9 'whinster':7
                                    'search_combo'  'blues':20 'child':6B,13 'excerpt':4A,17 'for':8C 'horrific':5B,12 'jb':19 'letrange':1A,14 'maniacs':9C,11 'monsieur':2A,15 'music':7C,10 'prerock':18 'whinster':3A,16
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-3', 'q-busy-2', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['avant-garde', 'progressive rock', 'psychedelic', 'sound collage', 'horror']
                                        'tag_date'  2010
                                     'discogstags'  ['experimental', 'rock']

============================== file details ==============================
                                           'mtime'  1620402946.963154  (2021-05-07 17:55:46)
                             'size'  14445066