======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '257'
                                          'artist'  'The Boy Least Likely To'
                                     'text_people'  ''
                                         'release'  'The Best Party Ever'
                                           'title'  "I'm Glad I Hitched My Apple Wagon to Your Star"
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-OLDST-3', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-JZFKS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'indie pop', 'alternative', 'twee', 'folk']"
                                     'discogstags'  ("['electronic', 'rock', 'pop', 'folk rock', 'acoustic', 'indie rock', "
 "'experimental']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '12'
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted'
                                             'bpm'  '100.1'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 0000101C 00000CE5 0001087E 0001050B 00023000 00021E50 00008000 00008000 '
 '0000174F 0000174F')
'MCDI' (Music CD identifier)                        MCDI(data=b'C\x00+\x009\x006\x00+\x004\x004\x000\x000\x00+\x008\x001\x00A\x005\x00+\x00B\x008\x007\x009\x00+\x00F\x002\x008\x00E\x00+\x001\x000\x001\x000\x007\x00+\x001\x004\x006\x00C\x009\x00+\x001\x009\x002\x009\x001\x00+\x001\x00D\x001\x00E\x00A\x00+\x002\x000\x00B\x00F\x001\x00+\x002\x005\x003\x006\x00C\x00+\x002\x007\x00F\x005\x006\x00+\x002\x008\x00E\x006\x00F\x00\x00\x00')
'PRIV:AverageLevel:à\x1b\x00\x00'                   PRIV(owner='AverageLevel', data=b'\xe0\x1b\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:U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'U\x00s\x00e\x00r\x00 \x00F\x00e\x00e\x00d\x00b\x00a\x00c\x00k\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:\x96°dÛé\x99IK\x93Ú\x92\xa0â\x80~\x1a'  PRIV(owner='WM/WMCollectionGroupID', data=b'\x96\xb0d\xdb\xe9\x99IK\x93\xda\x92\xa0\xe2\x80~\x1a')
'PRIV:WM/WMCollectionID:\x96°dÛé\x99IK\x93Ú\x92\xa0â\x80~\x1a'  PRIV(owner='WM/WMCollectionID', data=b'\x96\xb0d\xdb\xe9\x99IK\x93\xda\x92\xa0\xe2\x80~\x1a')
'PRIV:WM/WMContentID:\x00\x99>ó\x99RàC\x91\x9e\x85¥¥4\x01¥'  PRIV(owner='WM/WMContentID', data=b'\x00\x99>\xf3\x99R\xe0C\x91\x9e\x85\xa5\xa54\x01\xa5')
'TALB' (Album/Movie/Show title)                     'The Best Party Ever'
'TBPM' (BPM (beats per minute))                     '100.1'
'TCON' (Content type, a.k.a. Genre)                 'ifs-songwriter-indie-unsorted'
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         "I'm Glad I Hitched My Apple Wagon to Your Star"
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '258666'
'TPE1' (Lead performer(s)/Soloist(s))               'The Boy Least Likely To'
'TRCK' (Track number/Position in set)               '7/12'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic',
 'rock',
 'pop',
 'folk rock',
 'acoustic',
 'indie rock',
 'experimental']
'TXXX:lastfmtags'                                   ['indie', 'indie pop', 'alternative', 'twee', 'folk']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'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'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.45 dB'
'TXXX:replaygain_track_peak'                        '0.522026'

========================== row from database ==========================
                                              'id'  1508309
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/The Boy Least Likely To/The Best Party Ever/07 i_m glad i hitched my apple wagon to your star.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  257
                                           'genre'  ifs-songwriter-indie-unsorted
                                        'filesize'  4156380
                                           'mtime'  1638554650
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos 07 i_m glad hitched my apple wagon your star ifs songwriter indie unsorted
                                      'tag_artist'  The Boy Least Likely To
                                     'tag_release'  The Best Party Ever
                                       'tag_title'  I'm Glad I Hitched My Apple Wagon to Your Star
                                             'bpm'  100.1
                                    'search_title'  'apple':8 'glad':4 'hitched':6 'i':1,5 'im':3 'm':2 'my':7 'star':12 'to':10 'wagon':9 'your':11
                                   'search_artist'  'boy':2 'least':3 'likely':4 'the':1 'to':5
                                  'search_release'  'best':2 'ever':4 'party':3 'the':1
                                     'search_rest'  '00singer':1 'apple':9 'eos':3 'glad':6 'hitched':7 'i':4 'ifs':13 'indie':14 'm':5 'my':8 'songwriter':2 'star':12 'unsorted':15 'wagon':10 'your':11
                                    'search_combo'  '00singer':22 'apple':8A,30 'best':19C 'boy':14B 'eos':24 'ever':21C 'glad':4A,27 'hitched':6A,28 'i':1A,5A,25 'ifs':34 'im':3A 'indie':35 'least':15B 'likely':16B 'm':2A,26 'my':7A,29 'party':20C 'songwriter':23 'star':12A,33 'the':13B,18C 'to':10A,17B 'unsorted':36 'wagon':9A,31 'your':11A,32
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'indie pop', 'alternative', 'twee', 'folk']
                                        'tag_date'  2005
                                     'discogstags'  ['electronic', 'rock', 'pop', 'folk rock', 'acoustic', 'indie rock', 'experimental']

============================== file details ==============================
                                           'mtime'  1638554649.9554882  (2021-12-03 19:04:09)
                             'size'  4156380