======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '185'
                                          'artist'  'Four Aces featuring Al Alberts'
                                     'text_people'  'Jule Styne/Sammy Cahn'
                                         'release'  'Your Hit Parade: 1954'
                                           'title'  'Three Coins In The Fountain'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  '1954'
                                        'comments'  ''
                                           'genre'  'prerock-vocal'
                                             'bpm'  '141.512'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'COMM::eng'                                         '54-011 POS 1'
'COMM:ID3v1 Comment:XXX'                            '54-011 POS 1'
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x008\x00+\x009\x006\x00+\x002\x00B\x002\x005\x00+\x005\x007\x00C\x003\x00+\x008\x007\x00C\x003\x00+\x00B\x009\x006\x006\x00+\x00E\x00F\x00D\x00F\x00+\x001\x001\x00A\x00D\x00A\x00+\x001\x004\x00A\x003\x007\x00+\x001\x007\x008\x002\x00C\x00+\x001\x00A\x00D\x007\x009\x00+\x001\x00D\x00F\x00A\x008\x00+\x002\x001\x005\x00E\x00A\x00+\x002\x005\x007\x00B\x005\x00+\x002\x008\x005\x004\x000\x00+\x002\x00B\x006\x00A\x008\x00+\x002\x00E\x00C\x000\x002\x00+\x003\x001\x00E\x00C\x00F\x00+\x003\x005\x000\x005\x009\x00+\x003\x008\x001\x007\x001\x00+\x003\x00A\x006\x004\x00C\x00+\x003\x00D\x008\x00D\x005\x00+\x004\x001\x000\x007\x008\x00+\x004\x004\x002\x003\x00C\x00+\x004\x007\x002\x00C\x00F\x00+\x004\x00B\x002\x00B\x002\x00\x00\x00')
'PRIV:AverageLevel:h\x0f\x00\x00'                   PRIV(owner='AverageLevel', data=b'h\x0f\x00\x00')
'PRIV:PeakValue:þ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xfe\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 \x002\x001\x002\x003\x003\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x005\x004\x008\x003\x003\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x00 \x002\x001\x002\x003\x003\x009\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00V\x00A\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x00 \x002\x007\x005\x004\x008\x003\x003\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:ÔWdp-ÀáB\x8eY>\x83|ÝÅh'  PRIV(owner='WM/WMCollectionGroupID', data=b'\xd4Wdp-\xc0\xe1B\x8eY>\x83|\xdd\xc5h')
'PRIV:WM/WMCollectionID:ÔWdp-ÀáB\x8eY>\x83|ÝÅh'     PRIV(owner='WM/WMCollectionID', data=b'\xd4Wdp-\xc0\xe1B\x8eY>\x83|\xdd\xc5h')
'PRIV:WM/WMContentID:p*\x92\x96Â\x16ÜI¡\xad\x88XÈÖ\x1bu'  PRIV(owner='WM/WMContentID', data=b'p*\x92\x96\xc2\x16\xdcI\xa1\xad\x88X\xc8\xd6\x1bu')
'TALB' (Album/Movie/Show title)                     'Your Hit Parade: 1954'
'TBPM' (BPM (beats per minute))                     '141.512'
'TCOM' (Composer)                                   'Jule Styne/Sammy Cahn'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal'
'TDRC' (Recording time)                             '1954'
'TIT2' (Title/songname/content description)         'Three Coins In The Fountain'
'TKEY' (Initial key)                                '5B'
'TLEN' (Length)                                     '185200'
'TPE1' (Lead performer(s)/Soloist(s))               'Four Aces featuring Al Alberts'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPUB' (Publisher)                                  'Time-Life'
'TRCK' (Track number/Position in set)               '11'
'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:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'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'                        '+2.93 dB'
'TXXX:replaygain_track_peak'                        '0.494541'

========================== row from database ==========================
                                              'id'  1440743
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1954/54-011 - Four Aces featuring Al Alberts - Three Coins In The Fountain.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  185
                                           'genre'  prerock-vocal
                                        'filesize'  7405524
                                           'mtime'  1621853322
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 011 prerock vocal
                                      'tag_artist'  Four Aces featuring Al Alberts
                                     'tag_release'  Your Hit Parade: 1954
                                       'tag_title'  Three Coins In The Fountain
                                             'bpm'  141.512
                                    'search_title'  'coins':2 'fountain':5 'in':3 'the':4 'three':1
                                   'search_artist'  'aces':2 'al':4 'alberts':5 'featuring':3 'four':1
                                  'search_release'  '1954':5 'hit':2 'parade':3,4 'your':1
                                     'search_rest'  '00oldiepop':5 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':6 'vocal':7
                                    'search_combo'  '00oldiepop':20 '1954':15C 'aces':7B 'al':9B 'alberts':10B 'coins':2A 'country':19 'exotica':17 'featuring':8B 'fountain':5A 'four':6B 'hit':12C 'in':3A 'jazz':16 'oldies':18 'parade':13C,14C 'prerock':21 'the':4A 'three':1A 'vocal':22 'your':11C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  5B
                                           '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-1', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1954
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621853322.161172  (2021-05-24 12:48:42)
                             'size'  7405524