======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '148'
                                          'artist'  'Elvis Presley'
                                     'text_people'  ''
                                         'release'  'The Top Ten Hits Disc 1'
                                           'title'  'Jailhouse Rock'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-1', 'q-drums-3', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '003'
                                      'tracktotal'  ''
                                            'date'  '1957'
                                        'comments'  ''
                                           'genre'  'rock-pop-early-rocknroll'
                                             'bpm'  '84.035'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'MCDI' (Music CD identifier)                        MCDI(data=b'1\x003\x00+\x009\x006\x00+\x002\x005\x00B\x00A\x00+\x005\x003\x00B\x00E\x00+\x007\x00B\x005\x00A\x00+\x009\x00F\x002\x00C\x00+\x00C\x00F\x00A\x00D\x00+\x00F\x00F\x007\x00D\x00+\x001\x002\x00B\x00F\x001\x00+\x001\x004\x00E\x006\x000\x00+\x001\x006\x00E\x001\x00D\x00+\x001\x009\x009\x00B\x00A\x00+\x001\x00C\x00B\x006\x005\x00+\x001\x00E\x00C\x008\x008\x00+\x002\x001\x003\x00A\x00E\x00+\x002\x003\x004\x00A\x006\x00+\x002\x006\x000\x00F\x007\x00+\x002\x008\x000\x00B\x00E\x00+\x002\x00A\x00C\x007\x00C\x00+\x002\x00D\x000\x007\x001\x00+\x002\x00F\x007\x00B\x003\x00\x00\x00')
'PRIV:AverageLevel:¤\n\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xa4\n\x00\x00')
'PRIV:PeakValue:nn\x00\x00'                         PRIV(owner='PeakValue', data=b'nn\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 \x00 \x007\x008\x000\x001\x007\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 \x003\x001\x004\x008\x001\x002\x001\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x00 \x007\x008\x000\x001\x007\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 \x003\x001\x004\x008\x001\x002\x001\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x1fu\x0e{hgeH\x92öGü§DÄ:'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x1fu\x0e{hgeH\x92\xf6G\xfc\xa7D\xc4:')
'PRIV:WM/WMCollectionID:\x1fu\x0e{hgeH\x92öGü§DÄ:'  PRIV(owner='WM/WMCollectionID', data=b'\x1fu\x0e{hgeH\x92\xf6G\xfc\xa7D\xc4:')
'PRIV:WM/WMContentID:¤V¯»vA«C¢yåÄ\x07C\x03\x9d'     PRIV(owner='WM/WMContentID', data=b'\xa4V\xaf\xbbvA\xabC\xa2y\xe5\xc4\x07C\x03\x9d')
'TALB' (Album/Movie/Show title)                     'The Top Ten Hits Disc 1'
'TBPM' (BPM (beats per minute))                     '84.035'
'TCON' (Content type, a.k.a. Genre)                 'rock-pop-early-rocknroll'
'TDRC' (Recording time)                             '1957'
'TIT2' (Title/songname/content description)         'Jailhouse Rock'
'TKEY' (Initial key)                                '2A'
'TLEN' (Length)                                     '148866'
'TPE1' (Lead performer(s)/Soloist(s))               'Elvis Presley'
'TPUB' (Publisher)                                  'RCA'
'TRCK' (Track number/Position in set)               '003'
'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'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '+1.43 dB'
'TXXX:replaygain_track_peak'                        '0.725637'

========================== row from database ==========================
                                              'id'  1439525
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1957/1957-003 - Elvis Presley - Jailhouse Rock.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  148
                                           'genre'  rock-pop-early-rocknroll
                                        'filesize'  5956749
                                           'mtime'  1622659468
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1957 1957 003 rock pop early rocknroll
                                      'tag_artist'  Elvis Presley
                                     'tag_release'  The Top Ten Hits Disc 1
                                       'tag_title'  Jailhouse Rock
                                             'bpm'  84.035
                                    'search_title'  'jailhouse':1 'rock':2
                                   'search_artist'  'elvis':1 'presley':2
                                  'search_release'  '1':6 'disc':5 'hits':4 'ten':3 'the':1 'top':2
                                     'search_rest'  '00oldiepop':5 '1957':6 'country':4 'early':9 'exotica':2 'jazz':1 'oldies':3 'pop':8 'rock':7 'rocknroll':10
                                    'search_combo'  '00oldiepop':15 '1':10C '1957':16 'country':14 'disc':9C 'early':19 'elvis':3B 'exotica':12 'hits':8C 'jailhouse':1A 'jazz':11 'oldies':13 'pop':18 'presley':4B 'rock':2A,17 'rocknroll':20 'ten':7C 'the':5C 'top':6C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', '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-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['rock and roll', 'rock n roll', 'rock', 'oldies', 'classic rock']
                                        'tag_date'  1957
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622659468.1654854  (2021-06-02 20:44:28)
                             'size'  5956749