======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '26'
                                          'artist'  'Konstantin Raudive & Michael Smythe'
                                     'text_people'  ''
                                         'release'  ('An amazing experiment in the electronic communications with the dead - '
 '(flexidisc 1971)')
                                           'title'  ''
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-1', "
 "'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1971'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '142.1'
                                             'key'  '3A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     ('An amazing experiment in the electronic communications with the dead - '
 '(flexidisc 1971)')
'TBPM' (BPM (beats per minute))                     '142.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDRC' (Recording time)                             '1971'
'TKEY' (Initial key)                                '3A'
'TPE1' (Lead performer(s)/Soloist(s))               'Konstantin Raudive & Michael Smythe'
'TXXX:Mp3gain_minmax'                               '094,205'
'TXXX:Mp3gain_undo'                                 '+005,+005,N'
'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'                                       '3'
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.08 dB'
'TXXX:replaygain_track_peak'                        '0.424020'

========================== row from database ==========================
                                              'id'  1362884
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Konstantin Raudive & Michael Smythe - An amazing experiment in the electronic communications with the dead - (flexidisc 1971) [128k]/EVP1.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  26
                                           'genre'  electronic-unsorted
                                        'filesize'  424291
                                           'mtime'  1620539397
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm [128k] EVP1 unsorted
                                      'tag_artist'  Konstantin Raudive & Michael Smythe
                                     'tag_release'  An amazing experiment in the electronic communications with the dead - (flexidisc 1971)
                                       'tag_title'  None
                                             'bpm'  142.1
                                    'search_title'  None
                                   'search_artist'  'konstantin':1 'michael':3 'raudive':2 'smythe':4
                                  'search_release'  '1971':12,13 'amazing':2 'an':1 'communications':7 'dead':9 'electronic':6 'experiment':3 'flexidisc':10,11 'in':4 'the':5 'with':8
                                     'search_rest'  '128k':1,2 'evp1':3 'unsorted':4
                                    'search_combo'  '128k':18,19 '1971':16C,17C 'amazing':6C 'an':5C 'communications':11C 'dead':13C 'electronic':10C 'evp1':20 'experiment':7C 'flexidisc':14C,15C 'in':8C 'konstantin':1B 'michael':3B 'raudive':2B 'smythe':4B 'the':9C 'unsorted':21 'with':12C
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  3A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-piano-1', 'q-syn-2', 'q-chart-1', 'q-other-1', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1971
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620539396.8750699  (2021-05-09 07:49:56)
                             'size'  424291