======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '328'
                                          'artist'  'Ben Klock'
                                     'text_people'  ''
                                         'release'  'Dark Techno'
                                           'title'  'Wolf'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-4', 'q-bass-1', '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'  "['minimal techno', 'techno', 'electronic', 'bpitch control', 'minimal']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '127.927'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

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'PRIV:WM/WMCollectionID:r\x99\x91\x94áGÓN³ü+ÊÙðRP'  PRIV(owner='WM/WMCollectionID', data=b'r\x99\x91\x94\xe1G\xd3N\xb3\xfc+\xca\xd9\xf0RP')
'PRIV:WM/WMContentID:¼YdÜ!\n\x8c@\x9e§\x04ß\x12\x0f\x147'  PRIV(owner='WM/WMContentID', data=b'\xbcYd\xdc!\n\x8c@\x9e\xa7\x04\xdf\x12\x0f\x147')
'PRIV:http://www.cdtag.com:\x01\x01@1-\x00'         PRIV(owner='http://www.cdtag.com', data=b'\x01\x01@1-\x00')
'TALB' (Album/Movie/Show title)                     'Dark Techno'
'TBPM' (BPM (beats per minute))                     '127.927'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2010-00-00'
'TENC' (Encoded by)                                 '320'
'TIT2' (Title/songname/content description)         'Wolf'
'TKEY' (Initial key)                                '8A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Ben Klock'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Ostgut Ton'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 3.97'
'TXXX:Catalog #'                                    'atalog #'
'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:Release type'                                 'elease'
'TXXX:Rip date'                                     'ip date'
'TXXX:Ripping tool'                                 'ipp'
'TXXX:Supplier'                                     'upp'
'TXXX:lastfmtags'                                   ['minimal techno', 'techno', 'electronic', 'bpitch control', 'minimal']
'TXXX:q-bass'                                       '1'
'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'                        '+0.13 dB'
'TXXX:replaygain_track_peak'                        '0.512784'

========================== row from database ==========================
                                              'id'  1332349
                                            'path'  /data/Music/Bulk/00poprockelectronic/Dark - Techno/Ben Klock - Wolf ss.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  328
                                           'genre'  electronic-th-techno
                                        'filesize'  13200824
                                           'mtime'  1620568806
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic ss electronic th techno
                                      'tag_artist'  Ben Klock
                                     'tag_release'  Dark Techno
                                       'tag_title'  Wolf
                                             'bpm'  127.927
                                    'search_title'  'wolf':1
                                   'search_artist'  'ben':1 'klock':2
                                  'search_release'  'dark':1 'techno':2
                                     'search_rest'  '00poprockelectronic':1 'electronic':3 'ss':2 'techno':5 'th':4
                                    'search_combo'  '00poprockelectronic':6 'ben':2B 'dark':4C 'electronic':8 'klock':3B 'ss':7 'techno':5C,10 'th':9 'wolf':1A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  8A
                                           '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-1', 'q-grit-2']
                                      'lastfmtags'  ['minimal techno', 'techno', 'electronic', 'bpitch control', 'minimal']
                                        'tag_date'  2010
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620568806.390873  (2021-05-09 16:00:06)
                             'size'  13200824