======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '159'
                                          'artist'  'Autopilot Off'
                                     'text_people'  'Autopilot Off/Chris Johnson'
                                         'release'  'Autopilot Off EP'
                                           'title'  'Long Way To Fall'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['punk rock', 'pop punk', 'punk', 'rock', 'alternative']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '126.647'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            '[SSR]-+-[2002]-+-[SSR]'
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'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
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'PRIV:WM/WMCollectionGroupID:\xa0µ\x16¤¼¼\x1bB\x9a\x8f¥ºë \x80\x84'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xa0\xb5\x16\xa4\xbc\xbc\x1bB\x9a\x8f\xa5\xba\xeb \x80\x84')
'PRIV:WM/WMCollectionID:\xa0µ\x16¤¼¼\x1bB\x9a\x8f¥ºë \x80\x84'  PRIV(owner='WM/WMCollectionID', data=b'\xa0\xb5\x16\xa4\xbc\xbc\x1bB\x9a\x8f\xa5\xba\xeb \x80\x84')
'PRIV:WM/WMContentID:¢\x14\x81J\x07\n,C\x9eG\x03\x8e`þø±'  PRIV(owner='WM/WMContentID', data=b'\xa2\x14\x81J\x07\n,C\x9eG\x03\x8e`\xfe\xf8\xb1')
'TALB' (Album/Movie/Show title)                     'Autopilot Off EP'
'TBPM' (BPM (beats per minute))                     '126.647'
'TCOM' (Composer)                                   'Autopilot Off/Chris Johnson'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Long Way To Fall'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'Autopilot Off'
'TPE2' (Band/orchestra/accompaniment)               'Autopilot Off'
'TPUB' (Publisher)                                  'Universal'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['punk rock', 'pop punk', 'punk', 'rock', 'alternative']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.36 dB'
'TXXX:replaygain_track_peak'                        '0.452745'

========================== row from database ==========================
                                              'id'  1323617
                                            'path'  /data/Music/Bulk/00poprockelectronic/Autopilot off/Autopilot Off EP/Autopilot Off - EP - 01 - Long Way To Fall.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  159
                                           'genre'  rock-gr-punk
                                        'filesize'  3837342
                                           'mtime'  1622659245
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic off 01 rock gr punk
                                      'tag_artist'  Autopilot Off
                                     'tag_release'  Autopilot Off EP
                                       'tag_title'  Long Way To Fall
                                             'bpm'  126.647
                                    'search_title'  'fall':4 'long':1 'to':3 'way':2
                                   'search_artist'  'autopilot':1 'off':2
                                  'search_release'  'autopilot':1 'ep':3 'off':2
                                     'search_rest'  '00poprockelectronic':1 'gr':4 'off':2 'punk':5 'rock':3
                                    'search_combo'  '00poprockelectronic':10 'autopilot':5B,7C 'ep':9C 'fall':4A 'gr':13 'long':1A 'off':6B,8C,11 'punk':14 'rock':12 'to':3A 'way':2A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  ['punk rock', 'pop punk', 'punk', 'rock', 'alternative']
                                        'tag_date'  2002
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1622659244.7766693  (2021-06-02 20:40:44)
                             'size'  3837342