======================== unified (from filesystem) ========================
                                         'bitrate'  '187.581'
                                        'duration'  '77'
                                          'artist'  'Lorn'
                                     'text_people'  ''
                                         'release'  'Nothing Else'
                                           'title'  'Grandfather'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-4', 'Q-PLAY-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-3', 'q-drums-4', 'q-other-3', 'q-vocals-1', "
 "'q-mixbeat-3']")
                                      'lastfmtags'  "['black metal', 'electronic', 'idm', 'dubstep', 'electro']"
                                     'discogstags'  "['black metal', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  '12'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-beats'
                                             'bpm'  '132.271'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:http://www.cdtag.com:\x02\x00»\x0b\x8d\x00'   PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xbb\x0b\x8d\x00')
'TALB' (Album/Movie/Show title)                     'Nothing Else'
'TBPM' (BPM (beats per minute))                     '132.271'
'TCON' (Content type, a.k.a. Genre)                 'electronic-generic or radio-beats'
'TDRC' (Recording time)                             '2010-00-00'
'TENC' (Encoded by)                                 'kouala'
'TIT2' (Title/songname/content description)         'Grandfather'
'TKEY' (Initial key)                                '6A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Lorn'
'TPUB' (Publisher)                                  'Brainfeeder'
'TRCK' (Track number/Position in set)               '1/12'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME 3.97 -V2 --vbr-new '
'TXXX:Catalog #'                                    'BFCD007'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PIANO'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:Release type'                                 'Retail CD'
'TXXX:Rip date'                                     '2010-06-12'
'TXXX:Ripping tool'                                 'Exact Audio Copy'
'TXXX:Source'                                       'CD (LP)'
'TXXX:Supplier'                                     'kouala'
'TXXX:discogstags'                                  ['black metal', 'rock']
'TXXX:lastfmtags'                                   ['black metal', 'electronic', 'idm', 'dubstep', 'electro']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.92 dB'
'TXXX:replaygain_track_peak'                        '0.420608'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://bleep.com/index.php?page=release_details&releaseid=24862')

========================== row from database ==========================
                                              'id'  238535
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0synth_and_beat/Lorn/01-lorn-grandfather.mp3
                                         'working'  None
                                         'bitrate'  187
                                    'duration_sec'  77
                                           'genre'  electronic-generic or radio-beats
                                        'filesize'  1814160
                                           'mtime'  1620531339
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0synth_and_beat 01 lorn grandfather electronic generic radio beats
                                      'tag_artist'  Lorn
                                     'tag_release'  Nothing Else
                                       'tag_title'  Grandfather
                                             'bpm'  132.271
                                    'search_title'  'grandfather':1
                                   'search_artist'  'lorn':1
                                  'search_release'  'else':2 'nothing':1
                                     'search_rest'  '0synth':1 'and':2 'beat':3 'beats':9 'electronic':6 'generic':7 'grandfather':5 'lorn':4 'radio':8
                                    'search_combo'  '0synth':5 'and':6 'beat':7 'beats':13 'electronic':10 'else':4C 'generic':11 'grandfather':1A,9 'lorn':2B,8 'nothing':3C 'radio':12
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-3', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['black metal', 'electronic', 'idm', 'dubstep', 'electro']
                                        'tag_date'  2010
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620531339.2246509  (2021-05-09 05:35:39)
                             'size'  1814160