======================== unified (from filesystem) ========================
                                         'bitrate'  '159.982'
                                        'duration'  '236'
                                          'artist'  '3 Doors Down'
                                     'text_people'  ''
                                         'release'  'Billboard Top 100 - 2000'
                                           'title'  'Kryptonite'
                                           'quals'  ("['Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-UNU-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['alternative rock', 'alternative', 'hard rock', 'rock']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '0'
                                      'tracktotal'  ''
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-unsorted;set-pl-billboard'
                                             'bpm'  '98.838'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=196, count=0)
'TALB' (Album/Movie/Show title)                     'Billboard Top 100 - 2000'
'TBPM' (BPM (beats per minute))                     '98.838'
'TCON' (Content type, a.k.a. Genre)                 ['electronic-generic or radio-unsorted', 'set-pl-billboard']
'TDRC' (Recording time)                             '2000'
'TIT2' (Title/songname/content description)         'Kryptonite'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               '3 Doors Down'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '0'
'TXXX:MusicMagic Data'                              'AgEAOqxiq9ia5MQ0g3vumVzmlVaExobEAQSaV2V+5joNEqvkiNXtzrGpzfi9+qsigLCAATdMgo1AUv+AAC3rk+tA6Fu3dA3RmKWAAZ4kk5m6PoMHBNBAFYzEgqGHYNf1mAJMzb109Tqq/4g04Siyv8NG3Ne1/4MWg130yI4uAIn0eYlH3PHy1gGetrvZWIsjhvc='
'TXXX:MusicMagic Fingerprint'                       'ARRKMfJMpyocKmEYkw8yElcQFReIDdEAHAp4C+cOAAkRBlkJpAVGB4oNdgmOB10KsgpdBk4JdQXkBQsEwAOnAzgDeQMYA14DmQNfApQCUwIlxf2zsEV6+qQT4gM4+Vf9ruq5DTwM7+Wa9nX2WwS/AJj/3PU6wB4BnP5SwJ7/E/zF/LT+efzF/2b/y/9W/xH+3f+M/9TwMv7OwL3+xf8t/90PUSPcQb7zmLZB8TLsyvIh13fWO+1OAcf6jPcA/KT5nv52/Mz8TvUV+Tz78/2a/ZH8Nf4Q/N/+H/7awOXwCf8GwOj/WP8cwJr+xf9t/xH/KPAF3G70LhLO8QIdVAtq/wXW3+MzCY5WPSP9B4gXhBBqDdQLhAJhBIQH0AfWCFcJFwXfAyABmwACBFUFsgbFBEEEYgSZBXcEmgPfA1ICTAGmCf/+EPUUNm8wog5fGSoEidmpuWXgguCq8aP2XvAc+Xj/ZOlE9eD2UvPC+p79D/wD+5b+mP+EAR4A8P9lAG4ABwAn/7z+Mf7n/78AFgDYAFnyEOg2Fo7/TANI6lf9/QJLVcTKu9HOEtYSiBXG9MX5twLXGvUDGvIXACQBlgBEwDn/bf3HwFD+lv7twN0AQQBrAFUAMQArABn/cf+P/+X/2AJN5rv1QFdkvQD32wl1wGoQTQ8TDnHWwP+PExMFcQdKBlwPcAa/B6cH6ggOAuAFOwN1ALH/zQOpAjQCpgKiAdMClQI7AosBpAGiAYwBLQC0MiYkGA=='
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['alternative rock', 'alternative', 'hard rock', 'rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.59 dB'
'TXXX:replaygain_track_peak'                        '0.303132'

========================== row from database ==========================
                                              'id'  1348727
                                            'path'  /data/Music/Bulk/00poprockelectronic/Billboard/015 - 3 Doors Down - Kryptonite.mp3
                                         'working'  None
                                         'bitrate'  159
                                    'duration_sec'  236
                                           'genre'  electronic-generic or radio-unsorted;set-pl-billboard
                                        'filesize'  4733631
                                           'mtime'  1620384882
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 015 electronic generic radio unsorted;set pl billboard
                                      'tag_artist'  3 Doors Down
                                     'tag_release'  Billboard Top 100 - 2000
                                       'tag_title'  Kryptonite
                                             'bpm'  98.838
                                    'search_title'  'kryptonite':1
                                   'search_artist'  '3':1 'doors':2 'down':3
                                  'search_release'  '100':3 '2000':4 'billboard':1 'top':2
                                     'search_rest'  '00poprockelectronic':1 'billboard':10 'electronic':2 'generic':3 'pl':9 'radio':4 'set':6,8 'unsorted':5,7
                                    'search_combo'  '00poprockelectronic':9 '100':7C '2000':8C '3':2B 'billboard':5C,18 'doors':3B 'down':4B 'electronic':10 'generic':11 'kryptonite':1A 'pl':17 'radio':12 'set':14,16 'top':6C 'unsorted':13,15
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['alternative rock', 'alternative', 'hard rock', 'rock']
                                        'tag_date'  2000
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1620384882.2676234  (2021-05-07 12:54:42)
                             'size'  4733631