======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '120'
                                          'artist'  'Elvis Presley'
                                     'text_people'  ''
                                         'release'  '2nd to None'
                                           'title'  'Blue Suede Shoes'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '162'
                                      'tracktotal'  ''
                                            'date'  '1956'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '129.315'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x00E\x00+\x009\x006\x00+\x002\x002\x00E\x009\x00+\x004\x00E\x00B\x00D\x00+\x007\x001\x00F\x007\x00+\x00A\x001\x001\x00D\x00+\x00D\x001\x005\x008\x00+\x00F\x009\x006\x00A\x00+\x001\x002\x001\x004\x004\x00+\x001\x004\x008\x002\x007\x00+\x001\x006\x00F\x00D\x007\x00+\x001\x009\x005\x00D\x002\x00+\x001\x00B\x00E\x004\x00C\x00+\x001\x00D\x00E\x00D\x001\x00+\x002\x000\x003\x00C\x003\x00+\x002\x003\x003\x002\x007\x00+\x002\x006\x006\x008\x000\x00+\x002\x009\x003\x002\x00E\x00+\x002\x00B\x006\x005\x006\x00+\x002\x00D\x00B\x00B\x00D\x00+\x003\x000\x006\x006\x007\x00+\x003\x003\x00E\x001\x006\x00+\x003\x007\x005\x000\x002\x00+\x003\x00A\x005\x00F\x00C\x00+\x003\x00E\x000\x007\x008\x00+\x004\x000\x00C\x00E\x005\x00+\x004\x005\x00E\x00C\x00C\x00+\x004\x009\x00E\x00E\x009\x00+\x004\x00D\x003\x005\x000\x00+\x005\x000\x005\x001\x009\x00+\x005\x002\x00B\x00C\x002\x00+\x005\x006\x009\x00A\x005\x00\x00\x00')
'PRIV:AverageLevel:\x08\x1c\x00\x00'                PRIV(owner='AverageLevel', data=b'\x08\x1c\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\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 \x006\x005\x004\x002\x009\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x007\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x005\x006\x005\x001\x006\x006\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x006\x005\x004\x002\x009\x005\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x00 \x00 \x00 \x005\x001\x007\x005\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x006\x005\x006\x005\x001\x006\x006\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:B\x0bÞ\x80\x97§ºF\x8cÊ\x8b\x9d\x10\x14÷ì'  PRIV(owner='WM/WMCollectionGroupID', data=b'B\x0b\xde\x80\x97\xa7\xbaF\x8c\xca\x8b\x9d\x10\x14\xf7\xec')
'PRIV:WM/WMCollectionID:B\x0bÞ\x80\x97§ºF\x8cÊ\x8b\x9d\x10\x14÷ì'  PRIV(owner='WM/WMCollectionID', data=b'B\x0b\xde\x80\x97\xa7\xbaF\x8c\xca\x8b\x9d\x10\x14\xf7\xec')
'PRIV:WM/WMContentID:\x8cYç\x90ð"K®4^ÂÐÕ0\r'       PRIV(owner='WM/WMContentID', data=b'\x8cY\xe7\x90\xc3\xb0"K\xae4^\xc2\xd0\xd50\r')
'TALB' (Album/Movie/Show title)                     '2nd to None'
'TBPM' (BPM (beats per minute))                     '129.315'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1956'
'TIT2' (Title/songname/content description)         'Blue Suede Shoes'
'TKEY' (Initial key)                                '11B'
'TLEN' (Length)                                     '120240'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '162'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.81 dB'
'TXXX:replaygain_track_peak'                        '0.362868'

========================== row from database ==========================
                                              'id'  1445828
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1956/1956-162 - Elvis Presley - Blue Suede Shoes.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  120
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  4815347
                                           'mtime'  1622659462
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1956 1956 162 rock pop early rocknroll
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  2nd to None
                                       'tag_title'  Blue Suede Shoes
                                             'bpm'  129.315
                                    'search_title'  'blue':1 'shoes':3 'suede':2
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  '2nd':1 'none':3 'to':2
                                     'search_rest'  '00oldiepop':5 '162':7 '1956':6 'country':4 'early':10 'exotica':2 'jazz':1 'oldies':3 'pop':9 'rock':8 'rocknroll':11
                                    'search_combo'  '00oldiepop':13 '162':15 '1956':14 '2nd':6C 'blue':1A 'country':12 'early':18 'elvis':4B 'exotica':10 'jazz':9 'none':8C 'oldies':11 'pop':17 'presley':5B 'rock':16 'rocknroll':19 'shoes':3A 'suede':2A 'to':7C
                                    'tag_tracknum'  162
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-1', 'q-chart-1', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  1956
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659462.2302625  (2021-06-02 20:44:22)
                             'size'  4815347