======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '127'
                                          'artist'  'Preston Epps'
                                     'text_people'  'Arthur Egnoian; Preston Epps'
                                         'release'  "Golden Age of American Rock 'n' Roll, Vol. 1"
                                           'title'  'Bongo Rock'
                                           'quals'  ("['Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
 "'q-syn-1', 'q-bass-2', 'q-busy-2', 'q-grit-1', 'q-play-2', 'q-chart-1', "
 "'q-drums-4', 'q-other-4', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-1']")
                                      'lastfmtags'  "['secretagent', 'rock and roll', 'instrumental', '50s', 'checklist 2012']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1959'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '109.764'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '59-117 POS 14'
'COMM:ID3v1 Comment:XXX'                            '59-117 POS 14'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x00E\x00+\x00B\x006\x00+\x002\x003\x006\x00E\x00+\x005\x00C\x00C\x00B\x00+\x008\x007\x003\x004\x00+\x00B\x009\x003\x00E\x00+\x00E\x009\x007\x00F\x00+\x001\x000\x00E\x007\x008\x00+\x001\x003\x005\x004\x00C\x00+\x001\x006\x00D\x001\x009\x00+\x001\x009\x00A\x00A\x000\x00+\x001\x00C\x00E\x00C\x006\x00+\x001\x00F\x004\x003\x002\x00+\x002\x001\x00D\x008\x003\x00+\x002\x004\x009\x00B\x004\x00+\x002\x008\x000\x002\x00F\x00+\x002\x00B\x001\x005\x00B\x00+\x002\x00D\x00B\x007\x002\x00+\x003\x000\x006\x009\x007\x00+\x003\x002\x00B\x00A\x009\x00+\x003\x005\x006\x005\x006\x00+\x003\x007\x00E\x000\x006\x00+\x003\x00B\x00A\x008\x000\x00+\x003\x00E\x002\x001\x00C\x00+\x004\x001\x000\x006\x009\x00+\x004\x004\x000\x00B\x00D\x00+\x004\x007\x003\x00C\x009\x00+\x004\x00A\x002\x006\x00F\x00+\x004\x00D\x006\x00E\x000\x00+\x005\x000\x002\x00B\x007\x00+\x005\x002\x009\x00C\x009\x00+\x005\x006\x001\x00F\x005\x00\x00\x00')
'PRIV:AverageLevel:1\x11\x00\x00'                   PRIV(owner='AverageLevel', data=b'1\x11\x00\x00')
'PRIV:PeakValue:ír\x00\x00'                         PRIV(owner='PeakValue', data=b'\xedr\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'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')
'PRIV:WM/Provider:A\x00M\x00G\x00\x00\x00'          PRIV(owner='WM/Provider', data=b'A\x00M\x00G\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x007\x004\x000\x003\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x001\x002\x004\x004\x009\x008\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x001\x007\x004\x000\x003\x004\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x001\x001\x002\x004\x004\x009\x008\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:"-\x9e\x8d\x01R\x85F¬ªº}íË\x88<'  PRIV(owner='WM/WMCollectionGroupID', data=b'"-\x9e\x8d\x01R\x85F\xac\xaa\xba}\xed\xcb\x88<')
'PRIV:WM/WMCollectionID:"-\x9e\x8d\x01R\x85F¬ªº}íË\x88<'  PRIV(owner='WM/WMCollectionID', data=b'"-\x9e\x8d\x01R\x85F\xac\xaa\xba}\xed\xcb\x88<')
'PRIV:WM/WMContentID:Oª±?Fµ&D\x80Jy¿&K½P'           PRIV(owner='WM/WMContentID', data=b'O\xaa\xb1?F\xb5&D\x80Jy\xbf&K\xbdP')
'TALB' (Album/Movie/Show title)                     "Golden Age of American Rock 'n' Roll, Vol. 1"
'TBPM' (BPM (beats per minute))                     '109.764'
'TCOM' (Composer)                                   'Arthur Egnoian; Preston Epps'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1959'
'TIT2' (Title/songname/content description)         'Bongo Rock'
'TKEY' (Initial key)                                '4A'
'TLEN' (Length)                                     '127733'
'TPE1' (Lead performer(s)/Soloist(s))               'Preston Epps'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Ace'
'TRCK' (Track number/Position in set)               '11'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['secretagent', 'rock and roll', 'instrumental', '50s', 'checklist 2012']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.16 dB'
'TXXX:replaygain_track_peak'                        '0.532860'

========================== row from database ==========================
                                              'id'  1454128
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1959/59-117 - Preston Epps - Bongo Rock.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  127
                                           'genre'  prerock-unsorted
                                        'filesize'  5113231
                                           'mtime'  1620387792
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1959 59 117 prerock unsorted
                                      'tag_artist'  Preston Epps
                                     'tag_release'  Golden Age of American Rock 'n' Roll, Vol. 1
                                       'tag_title'  Bongo Rock
                                             'bpm'  109.764
                                    'search_title'  'bongo':1 'rock':2
                                   'search_artist'  'epps':2 'preston':1
                                  'search_release'  '1':12 'age':2 'american':4 'golden':1 'n':6,7 'of':3 'rock':5 'roll':8,9 'vol':10,11
                                     'search_rest'  '00oldiepop':5 '117':8 '1959':6 '59':7 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':9 'unsorted':10
                                    'search_combo'  '00oldiepop':21 '1':16C '117':24 '1959':22 '59':23 'age':6C 'american':8C 'bongo':1A 'country':20 'epps':4B 'exotica':18 'golden':5C 'jazz':17 'n':10C,11C 'of':7C 'oldies':19 'prerock':25 'preston':3B 'rock':2A,9C 'roll':12C,13C 'unsorted':26 'vol':14C,15C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-1', 'q-chart-1', 'q-other-4', 'q-bass-2', 'q-grit-1']
                                      'lastfmtags'  ['secretagent', 'rock and roll', 'instrumental', '50s', 'checklist 2012']
                                        'tag_date'  1959
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620387792.0565753  (2021-05-07 13:43:12)
                             'size'  5113231