======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '135'
                                          'artist'  'The Vogues'
                                     'text_people'  ''
                                         'release'  'I Was A Teenage Brain Surgeon'
                                           'title'  'Which Witchdoctor'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['60s', 'oldies', 'pop', 'classic rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  '17'
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-rockabilly or psychobilly'
                                             'bpm'  '111.3'
                                             'key'  '11A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'I Was A Teenage Brain Surgeon'
'TBPM' (BPM (beats per minute))                     '111.3'
'TCON' (Content type, a.k.a. Genre)                 'rock-rockabilly or psychobilly'
'TIT2' (Title/songname/content description)         'Which Witchdoctor'
'TKEY' (Initial key)                                '11A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Vogues'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '8/17'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['60s', 'oldies', 'pop', 'classic rock', 'rock']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.28 dB'
'TXXX:replaygain_track_peak'                        '0.506576'

========================== row from database ==========================
                                              'id'  948121
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/va - I Was A Teenage Brain Surgeon/08 Which Witchdoctor.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  rock-rockabilly or psychobilly
                                        'filesize'  3470793
                                           'mtime'  1620525477
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm va 08 rock rockabilly psychobilly
                                      'tag_artist'  The Vogues
                                     'tag_release'  I Was A Teenage Brain Surgeon
                                       'tag_title'  Which Witchdoctor
                                             'bpm'  111.3
                                    'search_title'  'which':1 'witchdoctor':2
                                   'search_artist'  'the':1 'vogues':2
                                  'search_release'  'a':3 'brain':5 'i':1 'surgeon':6 'teenage':4 'was':2
                                     'search_rest'  'psychobilly':4 'rock':2 'rockabilly':3 'va':1
                                    'search_combo'  'a':7C 'brain':9C 'i':5C 'psychobilly':14 'rock':12 'rockabilly':13 'surgeon':10C 'teenage':8C 'the':3B 'va':11 'vogues':4B 'was':6C 'which':1A 'witchdoctor':2A
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['60s', 'oldies', 'pop', 'classic rock', 'rock']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620525477.2257721  (2021-05-09 03:57:57)
                             'size'  3470793