======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '181'
                                          'artist'  'Lil Armstrong '
                                     'text_people'  'Davis'
                                         'release'  ''
                                           'title'  'Why Is a Good Man So Hard to Find?'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', "
 "'q-play-2', 'Q-JZFKS-2', 'Q-OLDST-1', 'q-chart-2', 'q-drums-1', 'q-other-2', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'q-mixbeat-1', 'Q-LOCALNESS-2']")
                                      'lastfmtags'  "['jazz', 'oldies', 'vocal jazz', 'acoustic', 'swing']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '25'
                                      'tracktotal'  ''
                                            'date'  '1935'
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-vocal'
                                             'bpm'  '135.910'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'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 \x002\x009\x000\x000\x008\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x005\x002\x004\x007\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x007\x004\x000\x000\x005\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x009\x000\x000\x008\x001\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x005\x002\x004\x007\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x003\x007\x004\x000\x000\x005\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x8df\x01d\x013&I\x8bÕ\x0cÝ\x88s -'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x8df\x01d\x013&I\x8b\xd5\x0c\xdd\x88s -')
'PRIV:WM/WMCollectionID:\x8df\x01d\x013&I\x8bÕ\x0cÝ\x88s -'  PRIV(owner='WM/WMCollectionID', data=b'\x8df\x01d\x013&I\x8b\xd5\x0c\xdd\x88s -')
'PRIV:WM/WMContentID:426\x12ÁóÂC¾j³¢ûni/'           PRIV(owner='WM/WMContentID', data=b'426\x12\xc1\xf3\xc2C\xbej\xb3\xa2\xfbni/')
'TBPM' (BPM (beats per minute))                     '135.910'
'TCOM' (Composer)                                   'Davis'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-vocal'
'TDRC' (Recording time)                             '1935'
'TIT2' (Title/songname/content description)         'Why Is a Good Man So Hard to Find?'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '181830'
'TPE1' (Lead performer(s)/Soloist(s))               'Lil Armstrong'
'TPE2' (Band/orchestra/accompaniment)               'Lil Armstrong '
'TPUB' (Publisher)                                  'Classics'
'TRCK' (Track number/Position in set)               '25'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '2'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'oldies', 'vocal jazz', 'acoustic', 'swing']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.60 dB'
'TXXX:replaygain_track_peak'                        '0.454695'

========================== row from database ==========================
                                              'id'  1529655
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/30_s collection/lil armstrong - why is a good man so hard to find.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  181
                                           'genre'  prerock-jb-jazz-vocal
                                        'filesize'  2930306
                                           'mtime'  1620527909
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 30_s collection lil armstrong why is good man so hard find prerock jb jazz vocal
                                      'tag_artist'  Lil Armstrong 
                                     'tag_release'  None
                                       'tag_title'  Why Is a Good Man So Hard to Find?
                                             'bpm'  135.91
                                    'search_title'  'a':3 'find':9 'good':4 'hard':7 'is':2 'man':5 'so':6 'to':8 'why':1
                                   'search_artist'  'armstrong':2 'lil':1
                                  'search_release'  
                                     'search_rest'  '30':5 'armstrong':9 'collection':7 'country':4 'exotica':2 'find':16 'good':12 'hard':15 'is':11 'jazz':1 'jb':18 'lil':8 'man':13 'oldies':3 'prerock':17 's':6 'so':14 'vocal':19 'why':10
                                    'search_combo'  '30':16 'a':3A 'armstrong':11B,20 'collection':18 'country':15 'exotica':13 'find':9A,27 'good':4A,23 'hard':7A,26 'is':2A,22 'jazz':12 'jb':29 'lil':10B,19 'man':5A,24 'oldies':14 'prerock':28 's':17 'so':6A,25 'to':8A 'vocal':30 'why':1A,21
                                    'tag_tracknum'  25
                                      'num_images'  1
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['jazz', 'oldies', 'vocal jazz', 'acoustic', 'swing']
                                        'tag_date'  1935
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620527908.505621  (2021-05-09 04:38:28)
                             'size'  2930306