======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '160'
                                          'artist'  "Einstein's Creation"
                                     'text_people'  'James Eric'
                                         'release'  "Cheese Alfred Pickles Spam: The Worst of Einstein's Creation"
                                           'title'  'The Toothpaste Polka'
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-JZFKS-1', "
 "'Q-HHRNBTT-1', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-1', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '15'
                                      'tracktotal'  ''
                                            'date'  '1992'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-experimental'
                                             'bpm'  '127.9'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
'COMM:iTunNORM:eng'                                 (' 000002AC 000002AC 0000555A 0000555A 00020DD0 00020DD0 00009058 00009058 '
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'COMM:iTunPGAP:eng'                                 '0'
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 000008C4 00000000006BBF2C 00000000 0030D1F5 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_1:eng'                            '300FB015+301378+21+150+11182+24413+35712+58931+73139+89945+95138+109124+126551+137295+150970+166665+169504+185399+197408+211083+224713+239276+255438+278150'
'COMM:iTunes_CDDB_TrackNumber:eng'                  '15'
'TALB' (Album/Movie/Show title)                     "Cheese Alfred Pickles Spam: The Worst of Einstein's Creation"
'TBPM' (BPM (beats per minute))                     '127.9'
'TCOM' (Composer)                                   'James Eric'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-experimental'
'TDRC' (Recording time)                             '1992'
'TENC' (Encoded by)                                 'iTunes v7.4.3.1'
'TIT2' (Title/songname/content description)         'The Toothpaste Polka'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               "Einstein's Creation"
'TRCK' (Track number/Position in set)               '15'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.31 dB'
'TXXX:replaygain_track_peak'                        '0.561543'

========================== row from database ==========================
                                              'id'  660207
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/10/298_15_Einsteins_Creation_-_The_Toothpaste_Polka.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  160
                                           'genre'  ifs-songwriter-experimental
                                        'filesize'  3383942
                                           'mtime'  1636400805
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm 10 298_15_Einsteins_Creation_ _The_Toothpaste_Polka ifs songwriter experimental
                                      'tag_artist'  Einstein's Creation
                                     'tag_release'  Cheese Alfred Pickles Spam: The Worst of Einstein's Creation
                                       'tag_title'  The Toothpaste Polka
                                             'bpm'  127.9
                                    'search_title'  'polka':3 'the':1 'toothpaste':2
                                   'search_artist'  'creation':4 'einstein':1 'einsteins':3 's':2
                                  'search_release'  'alfred':2 'cheese':1 'creation':12 'einstein':9 'einsteins':11 'of':8 'pickles':3 's':10 'spam':4,5 'the':6 'worst':7
                                     'search_rest'  '15':2 '298':1 'creation':4 'einsteins':3 'experimental':10 'ifs':8 'polka':7 'songwriter':9 'the':5 'toothpaste':6
                                    'search_combo'  '15':21 '298':20 'alfred':9C 'cheese':8C 'creation':7B,19C,23 'einstein':4B,16C 'einsteins':6B,18C,22 'experimental':29 'ifs':27 'of':15C 'pickles':10C 'polka':3A,26 's':5B,17C 'songwriter':28 'spam':11C,12C 'the':1A,13C,24 'toothpaste':2A,25 'worst':14C
                                    'tag_tracknum'  15
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', '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-2', 'q-other-1', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1992
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636400804.5856462  (2021-11-08 20:46:44)
                             'size'  3383942