======================== unified (from filesystem) ========================
                                         'bitrate'  '319.959'
                                        'duration'  '201'
                                          'artist'  'Nicolas Jaar'
                                     'text_people'  'Nicolas Jaar'
                                         'release'  'Space Is Only Noise'
                                           'title'  'Variations'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['deep house', 'techno', 'electronic', 'minimal', 'house']"
                                     'discogstags'  "['electronic', 'downtempo', 'idm', 'deep house']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  '14'
                                            'date'  '2011'
                                        'comments'  ''
                                           'genre'  'electronic-th-techno'
                                             'bpm'  '108.529'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         ['0',
 ' 0000012F 000001E1 00000F37 00001CE7 00019CA7 000285EB 000086FF 0000881F '
 '00011D1A 00014A68',
 ' 00000000 00000210 000007D4 0000000000877D1C 00000000 007ACCBC 00000000 '
 '00000000 00000000 00000000 00000000 00000000',
 '14++']
'COMM:ID3v1 Comment:XXX'                            '0'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Space Is Only Noise'
'TBPM' (BPM (beats per minute))                     '108.529'
'TCOM' (Composer)                                   'Nicolas Jaar'
'TCON' (Content type, a.k.a. Genre)                 'electronic-th-techno'
'TDRC' (Recording time)                             '2011-02-16'
'TENC' (Encoded by)                                 'iTunes 10.1.1'
'TIT2' (Title/songname/content description)         'Variations'
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'Nicolas Jaar'
'TPE2' (Band/orchestra/accompaniment)               'Nicolas Jaar'
'TPUB' (Publisher)                                  'Circus Company'
'TRCK' (Track number/Position in set)               '13/14'
'TSOP' (Performer sort order)                       'Jaar, Nicolas'
'TXXX:ALBUMARTISTSORT'                              'Jaar, Nicolas'
'TXXX:ASIN'                                         'B004EN9WCQ'
'TXXX:BARCODE'                                      '827170367364'
'TXXX:CATALOGNUMBER'                                'CCS055'
'TXXX:MusicBrainz Album Artist Id'                  '06e99a1b-4020-4380-ab27-1a3e0c5e557c'
'TXXX:MusicBrainz Album Id'                         'd2022e3f-c22f-45c9-a1ab-4b2094d65719'
'TXXX:MusicBrainz Album Release Country'            'FR'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '06e99a1b-4020-4380-ab27-1a3e0c5e557c'
'TXXX:MusicIP PUID'                                 '0829a49e-0e85-5e1c-b218-4676013187cc'
'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', 'downtempo', 'idm', 'deep house']
'TXXX:lastfmtags'                                   ['deep house', 'techno', 'electronic', 'minimal', 'house']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+3.03 dB'
'TXXX:replaygain_track_peak'                        '0.447493'

========================== row from database ==========================
                                              'id'  1335440
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/13-Variations.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  201
                                           'genre'  electronic-th-techno
                                        'filesize'  8196385
                                           'mtime'  1620572646
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] 13 electronic th techno
                                      'tag_artist'  Nicolas Jaar
                                     'tag_release'  Space Is Only Noise
                                       'tag_title'  Variations
                                             'bpm'  108.529
                                    'search_title'  'variations':1
                                   'search_artist'  'jaar':2 'nicolas':1
                                  'search_release'  'is':2 'noise':4 'only':3 'space':1
                                     'search_rest'  '00poprockelectronic':1 'electronic':7 'files':5,6 'loose':3,4 'techno':9 'th':8 'unsorted':2
                                    'search_combo'  '00poprockelectronic':8 'electronic':14 'files':12,13 'is':5C 'jaar':3B 'loose':10,11 'nicolas':2B 'noise':7C 'only':6C 'space':4C 'techno':16 'th':15 'unsorted':9 'variations':1A
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['deep house', 'techno', 'electronic', 'minimal', 'house']
                                        'tag_date'  2011
                                     'discogstags'  ['electronic', 'downtempo', 'idm', 'deep house']

============================== file details ==============================
                                           'mtime'  1620572645.9134042  (2021-05-09 17:04:05)
                             'size'  8196385