======================== unified (from filesystem) ========================
                                         'bitrate'  '221.803'
                                        'duration'  '151'
                                          'artist'  'Lorn'
                                     'text_people'  ''
                                         'release'  'Nothing Else'
                                           'title'  "What's The Use"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-UNU-1', 'q-syn-4', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-3', 'q-drums-4', 'q-other-1', 'q-piano-1', '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'  '12'
                                      'tracktotal'  '12'
                                            'date'  '2010'
                                        'comments'  ''
                                           'genre'  'electronic-generic or radio-beats'
                                             'bpm'  '85.023'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:http://www.cdtag.com:\x02\x00Ý\x16¸\x00'      PRIV(owner='http://www.cdtag.com', data=b'\x02\x00\xdd\x16\xb8\x00')
'TALB' (Album/Movie/Show title)                     'Nothing Else'
'TBPM' (BPM (beats per minute))                     '85.023'
'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)         "What's The Use"
'TKEY' (Initial key)                                '6A'
'TLAN' (Language(s))                                'eng'
'TPE1' (Lead performer(s)/Soloist(s))               'Lorn'
'TPUB' (Publisher)                                  'Brainfeeder'
'TRCK' (Track number/Position in set)               '12/12'
'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-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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '3'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '4'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.77 dB'
'TXXX:replaygain_track_peak'                        '0.407036'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://bleep.com/index.php?page=release_details&releaseid=24862')

========================== row from database ==========================
                                              'id'  232997
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/0synth_and_beat/Lorn/12-lorn-whats_the_use.mp3
                                         'working'  None
                                         'bitrate'  221
                                    'duration_sec'  151
                                           'genre'  electronic-generic or radio-beats
                                        'filesize'  4215245
                                           'mtime'  1620531364
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 0synth_and_beat 12 lorn whats_the_use electronic generic radio beats
                                      'tag_artist'  Lorn
                                     'tag_release'  Nothing Else
                                       'tag_title'  What's The Use
                                             'bpm'  85.023
                                    'search_title'  's':2 'the':4 'use':5 'what':1 'whats':3
                                   'search_artist'  'lorn':1
                                  'search_release'  'else':2 'nothing':1
                                     'search_rest'  '0synth':1 'and':2 'beat':3 'beats':11 'electronic':8 'generic':9 'lorn':4 'radio':10 'the':6 'use':7 'whats':5
                                    'search_combo'  '0synth':9 'and':10 'beat':11 'beats':19 'electronic':16 'else':8C 'generic':17 'lorn':6B,12 'nothing':7C 'radio':18 's':2A 'the':4A,14 'use':5A,15 'what':1A 'whats':3A,13
                                    'tag_tracknum'  12
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-3', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-4', 'q-chart-3', 'q-other-1', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['black metal', 'electronic', 'idm', 'dubstep', 'electro']
                                        'tag_date'  2010
                                     'discogstags'  ['black metal', 'rock']

============================== file details ==============================
                                           'mtime'  1620531363.740576  (2021-05-09 05:36:03)
                             'size'  4215245