======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '804'
                                          'artist'  'The Gaslamp Killer'
                                     'text_people'  ''
                                         'release'  'Hell And The Lake Of Fire Are Waiting For You!'
                                           'title'  'Untitled 4'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-LOCALNESS-1', 'Q-HHRNBTT-3', "
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 "'q-chart-2', 'q-drums-4', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['psychedelic', 'jazz', 'electronic', 'hip hop', 'experimental']"
                                     'discogstags'  "['electronic', 'hip hop', 'instrumental', 'experimental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '4'
                                      'tracktotal'  ''
                                            'date'  '2009'
                                        'comments'  ''
                                           'genre'  'hip hop or rnb or rap or turntablism'
                                             'bpm'  '93.027'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'COMM:iTunNORM:eng'                                 (' 00000796 0000064C 0000CF26 0000D1BB 000827B5 000827B5 00008000 00008000 '
 '00085C51 00085C51')
'TALB' (Album/Movie/Show title)                     'Hell And The Lake Of Fire Are Waiting For You!'
'TBPM' (BPM (beats per minute))                     '93.027'
'TCON' (Content type, a.k.a. Genre)                 'hip hop or rnb or rap or turntablism'
'TDOR' (Original release time)                      '2009'
'TDRC' (Recording time)                             '2009'
'TIT2' (Title/songname/content description)         'Untitled 4'
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '804040'
'TPE1' (Lead performer(s)/Soloist(s))               'The Gaslamp Killer'
'TRCK' (Track number/Position in set)               '4'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 32bits version 3.98.2 (http://www.mp3dev.org/)'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '3'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['electronic', 'hip hop', 'instrumental', 'experimental']
'TXXX:lastfmtags'                                   ['psychedelic', 'jazz', 'electronic', 'hip hop', 'experimental']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.36 dB'
'TXXX:replaygain_track_peak'                        '0.503761'

========================== row from database ==========================
                                              'id'  1387940
                                            'path'  /data/Music/Bulk/00popandrock-hiphop-rap-rnb-turntablism/The Gaslamp Killer/Hell And The Lake Of Fire Are Waiting For You!/04 Untitled 4.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  804
                                           'genre'  hip hop or rnb or rap or turntablism
                                        'filesize'  32237196
                                           'mtime'  1620592517
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock hiphop rap rnb turntablism 04 hip hop rnb rap turntablism
                                      'tag_artist'  The Gaslamp Killer
                                     'tag_release'  Hell And The Lake Of Fire Are Waiting For You!
                                       'tag_title'  Untitled 4
                                             'bpm'  93.027
                                    'search_title'  '4':2 'untitled':1
                                   'search_artist'  'gaslamp':2 'killer':3 'the':1
                                  'search_release'  'and':2 'are':7 'fire':6 'for':9 'hell':1 'lake':4 'of':5 'the':3 'waiting':8 'you':10
                                     'search_rest'  'hip':5 'hiphop':1 'hop':6 'rap':2 'rnb':3 'turntablism':4
                                    'search_combo'  '4':2A 'and':7C 'are':12C 'fire':11C 'for':14C 'gaslamp':4B 'hell':6C 'hip':20 'hiphop':16 'hop':21 'killer':5B 'lake':9C 'of':10C 'rap':17 'rnb':18 'the':3B,8C 'turntablism':19 'untitled':1A 'waiting':13C 'you':15C
                                    'tag_tracknum'  4
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-3', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', '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-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['psychedelic', 'jazz', 'electronic', 'hip hop', 'experimental']
                                        'tag_date'  2009
                                     'discogstags'  ['electronic', 'hip hop', 'instrumental', 'experimental']

============================== file details ==============================
                                           'mtime'  1620592517.4426956  (2021-05-09 22:35:17)
                             'size'  32237196