======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '207'
                                          'artist'  'Cagey House'
                                     'text_people'  ''
                                         'release'  'Classwar Karaoke - 0023 Survey'
                                           'title'  'Katie the Ghost Decides to March'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-OLDST-3', 'Q-HHRNBTT-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'Q-PLAY-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', "
 "'Q-PIANO-2', 'q-chart-1', 'q-drums-1', 'q-other-4', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['american', 'usa', 'electronic', 'creative commons', 'experimental']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  ''
                                            'date'  '2013'
                                        'comments'  ''
                                           'genre'  'electronic-unsorted'
                                             'bpm'  '136.3'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Classwar Karaoke - 0023 Survey'
'TBPM' (BPM (beats per minute))                     '136.3'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-unsorted'
'TCOP' (Copyright message)                          ('Attribution-NonCommercial-ShareAlike: '
 'http://creativecommons.org/licenses/by-nc-sa/3.0/')
'TDRC' (Recording time)                             '2013'
'TIT2' (Title/songname/content description)         'Katie the Ghost Decides to March'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Cagey House'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '1/1'
'TRCK' (Track number/Position in set)               '14'
'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'                                        '2'
'TXXX:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['american', 'usa', 'electronic', 'creative commons', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.21 dB'
'TXXX:replaygain_track_peak'                        '0.488304'

========================== row from database ==========================
                                              'id'  1382554
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Klopenn - va - classwar karaoke [0023 survey]/Cagey_House_-_14_-_Katie_the_Ghost_Decides_to_March.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  207
                                           'genre'  electronic-unsorted
                                        'filesize'  8343791
                                           'mtime'  1622758943
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Klopenn va classwar karaoke [0023 survey] Cagey_House_ _14_ _Katie_the_Ghost_Decides_to_March electronic unsorted
                                      'tag_artist'  Cagey House
                                     'tag_release'  Classwar Karaoke - 0023 Survey
                                       'tag_title'  Katie the Ghost Decides to March
                                             'bpm'  136.3
                                    'search_title'  'decides':4 'ghost':3 'katie':1 'march':6 'the':2 'to':5
                                   'search_artist'  'cagey':1 'house':2
                                  'search_release'  'classwar':1 'karaoke':2 'survey':3
                                     'search_rest'  '0023':5,6 '14':11 'cagey':9 'classwar':3 'decides':15 'electronic':18 'ghost':14 'house':10 'karaoke':4 'katie':12 'klopenn':1 'march':17 'survey':7,8 'the':13 'to':16 'unsorted':19 'va':2
                                    'search_combo'  '0023':16,17 '14':22 'cagey':7B,20 'classwar':9C,14 'decides':4A,26 'electronic':29 'ghost':3A,25 'house':8B,21 'karaoke':10C,15 'katie':1A,23 'klopenn':12 'march':6A,28 'survey':11C,18,19 'the':2A,24 'to':5A,27 'unsorted':30 'va':13
                                    'tag_tracknum'  14
                                      'num_images'  1
                                             'key'  8B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-mixbeat-1', 'Q-PIANO-2', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['american', 'usa', 'electronic', 'creative commons', 'experimental']
                                        'tag_date'  2013
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1622758943.321213  (2021-06-04 00:22:23)
                             'size'  8343791