======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '67'
                                          'artist'  'Divinorum'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Kubla Khan'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['black metal', 'death metal', 'chillout', 'psytrance', 'elektronic beats']"
                                     'discogstags'  "['electronic', 'goa trance']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'electronic-th-trance'
                                             'bpm'  '127.8'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '127.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-trance'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Kubla Khan'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Divinorum'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'goa trance']
'TXXX:lastfmtags'                                   ['black metal', 'death metal', 'chillout', 'psytrance', 'elektronic beats']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.05 dB'
'TXXX:replaygain_track_peak'                        '0.788471'

========================== row from database ==========================
                                              'id'  1346262
                                            'path'  /data/Music/Bulk/00poprockelectronic/Divinorum/divinorum-kubla_khan%28clip%29.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  67
                                           'genre'  electronic-th-trance
                                        'filesize'  1077260
                                           'mtime'  1621696764
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic divinorum kubla_khan%28clip%29 electronic th trance
                                      'tag_artist'  Divinorum
                                     'tag_release'  None
                                       'tag_title'  Kubla Khan
                                             'bpm'  127.8
                                    'search_title'  'khan':2 'kubla':1
                                   'search_artist'  'divinorum':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 '28clip':5 '29':6 'divinorum':2 'electronic':7 'khan':4 'kubla':3 'th':8 'trance':9
                                    'search_combo'  '00poprockelectronic':4 '28clip':8 '29':9 'divinorum':3B,5 'electronic':10 'khan':2A,7 'kubla':1A,6 'th':11 'trance':12
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-4', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['black metal', 'death metal', 'chillout', 'psytrance', 'elektronic beats']
                                        'tag_date'  1999
                                     'discogstags'  ['electronic', 'goa trance']

============================== file details ==============================
                                           'mtime'  1621696763.6167932  (2021-05-22 17:19:23)
                             'size'  1077260