======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '384'
                                          'artist'  'Heretic'
                                     'text_people'  ''
                                         'release'  'Beatport: Top 100 - November 2016 (Indie Dance / Nu Disco)'
                                           'title'  'Mesmeric (Curses Remix)'
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'q-syn-3', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  "['thrash metal', 'black metal', 'heavy metal', 'dutch', 'power metal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '118.00'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Beatport: Top 100 - November 2016 (Indie Dance / Nu Disco)'
'TBPM' (BPM (beats per minute))                     '118.00'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TDOR' (Original release time)                      '2016'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Mesmeric (Curses Remix)'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Heretic'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['thrash metal', 'black metal', 'heavy metal', 'dutch', 'power metal']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.79 dB'
'TXXX:replaygain_track_peak'                        '0.454006'

========================== row from database ==========================
                                              'id'  1300256
                                            'path'  /data/Music/Bulk/00poprockelectronic/Marvin & Guy - 2015-2016/Heretic - Mesmeric (Curses Remix).mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  384
                                           'genre'  electronic-unsorted
                                        'filesize'  15414465
                                           'mtime'  1620571014
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Marvin & Guy 2015 electronic unsorted
                                      'tag_artist'  Heretic
                                     'tag_release'  Beatport: Top 100 - November 2016 (Indie Dance / Nu Disco)
                                       'tag_title'  Mesmeric (Curses Remix)
                                             'bpm'  118.0
                                    'search_title'  'curses':2,3 'mesmeric':1 'remix':4,5
                                   'search_artist'  'heretic':1
                                  'search_release'  '100':4 '2016':6 'beatport':1,2 'dance':9 'disco':11,12 'indie':7,8 'november':5 'nu':10 'top':3
                                     'search_rest'  '00poprockelectronic':1 '2015':4 'electronic':5 'guy':3 'marvin':2 'unsorted':6
                                    'search_combo'  '00poprockelectronic':19 '100':10C '2015':22 '2016':12C 'beatport':7C,8C 'curses':2A,3A 'dance':15C 'disco':17C,18C 'electronic':23 'guy':21 'heretic':6B 'indie':13C,14C 'marvin':20 'mesmeric':1A 'november':11C 'nu':16C 'remix':4A,5A 'top':9C 'unsorted':24
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  5A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-1', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['thrash metal', 'black metal', 'heavy metal', 'dutch', 'power metal']
                                        'tag_date'  2016
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620571014.296426  (2021-05-09 16:36:54)
                             'size'  15414465