======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '318'
                                          'artist'  'Clouds'
                                     'text_people'  ''
                                         'release'  'Dark Techno'
                                           'title'  'Maverick Scrabble'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-4']")
                                      'lastfmtags'  "['dubstep', 'techno', 'doom metal', 'atmospheric doom metal', 'stoner rock']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2016'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '132.966'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
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'PRIV:WM/WMCollectionGroupID:4\x06í\x10\x03ÀÌBº À\x8eü\x1bÑå'  PRIV(owner='WM/WMCollectionGroupID', data=b'4\x06\xed\x10\x03\xc0\xccB\xba \xc0\x8e\xfc\x1b\xd1\xe5')
'PRIV:WM/WMCollectionID:4\x06í\x10\x03ÀÌBº À\x8eü\x1bÑå'  PRIV(owner='WM/WMCollectionID', data=b'4\x06\xed\x10\x03\xc0\xccB\xba \xc0\x8e\xfc\x1b\xd1\xe5')
'PRIV:WM/WMContentID:`÷ßPü´ÑF¬ÆýÀ\x93å\x1f²'        PRIV(owner='WM/WMContentID', data=b'`\xf7\xdfP\xfc\xb4\xd1F\xac\xc6\xfd\xc0\x93\xe5\x1f\xb2')
'TALB' (Album/Movie/Show title)                     'Dark Techno'
'TBPM' (BPM (beats per minute))                     '132.966'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2016'
'TIT2' (Title/songname/content description)         'Maverick Scrabble'
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'Clouds'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Electric Deluxe'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dubstep', 'techno', 'doom metal', 'atmospheric doom metal', 'stoner rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '4'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.41 dB'
'TXXX:replaygain_track_peak'                        '0.608965'

========================== row from database ==========================
                                              'id'  1325390
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dark - Techno/Clouds - Maverick Scrabble ss.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  318
                                           'genre'  electronic-th-techno
                                        'filesize'  12740007
                                           'mtime'  1620568818
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ss electronic th techno
                                      'tag_artist'  Clouds
                                     'tag_release'  Dark Techno
                                       'tag_title'  Maverick Scrabble
                                             'bpm'  132.966
                                    'search_title'  'maverick':1 'scrabble':2
                                   'search_artist'  'clouds':1
                                  'search_release'  'dark':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'ss':2 'techno':5 'th':4
                                    'search_combo'  '00poprockelectronic':6 'clouds':3B 'dark':4C 'electronic':8 'maverick':1A 'scrabble':2A 'ss':7 'techno':5C,10 'th':9
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  6A
                                           '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-1', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dubstep', 'techno', 'doom metal', 'atmospheric doom metal', 'stoner rock']
                                        'tag_date'  2016
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1620568818.3931708  (2021-05-09 16:00:18)
                             'size'  12740007