======================== unified (from filesystem) ========================
                                         'bitrate'  '203.219'
                                        'duration'  '262'
                                          'artist'  'Spangle Call Lilli Line'
                                     'text_people'  ''
                                         'release'  'Trace'
                                           'title'  'R.G.B.'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-3', 'q-syn-1', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'downtempo', 'electronica', 'post rock', 'japanese']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  '2005'
                                        'comments'  ''
                                           'genre'  'loc-asia-japan;loc-asia-japan-jpop'
                                             'bpm'  '126.017'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00000EBB 00000EDA 000042B8'
'COMM:iTunNORM:eng'                                 (' 00000EBB 00000EDA 000042B8 00004596 0002B688 0002B688 00008000 00008000 '
 '000048D1 0001564E')
'PRIV:AverageLevel:\x18\x1e\x00\x00'                PRIV(owner='AverageLevel', data=b'\x18\x1e\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')
'TALB' (Album/Movie/Show title)                     'Trace'
'TBPM' (BPM (beats per minute))                     '126.017'
'TCON' (Content type, a.k.a. Genre)                 ['loc-asia-japan', 'loc-asia-japan-jpop']
'TDRC' (Recording time)                             '2005'
'TIT2' (Title/songname/content description)         'R.G.B.'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Spangle Call Lilli Line'
'TRCK' (Track number/Position in set)               '8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['indie', 'downtempo', 'electronica', 'post rock', 'japanese']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.34 dB'
'TXXX:replaygain_track_peak'                        '0.432949'

========================== row from database ==========================
                                              'id'  670280
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/otomo yoshihide (2005.04.20) (album) Trace [vbr]/08 - R.G.B..mp3
                                         'working'  None
                                         'bitrate'  203
                                    'duration_sec'  262
                                           'genre'  loc-asia-japan;loc-asia-japan-jpop
                                        'filesize'  6682229
                                           'mtime'  1621699795
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country otomo yoshihide (2005.04.20) (album) [vbr] 08 loc asia japan;loc asia japan jpop
                                      'tag_artist'  Spangle Call Lilli Line
                                     'tag_release'  Trace
                                       'tag_title'  R.G.B.
                                             'bpm'  126.017
                                    'search_title'  'b':3 'g':2 'r':1 'rgb':4
                                   'search_artist'  'call':2 'lilli':3 'line':4 'spangle':1
                                  'search_release'  'trace':1
                                     'search_rest'  '04':8 '20':9 '2005':7 '20050420':10 'album':11,12 'asia':16 'country':4 'exotica':2 'japan':17,19,21 'jazz':1 'jpop':22 'loc':15,18,20 'oldies':3 'otomo':5 'vbr':13,14 'yoshihide':6
                                    'search_combo'  '04':17 '20':18 '2005':16 '20050420':19 'album':20,21 'asia':25 'b':3A 'call':6B 'country':13 'exotica':11 'g':2A 'japan':26,28,30 'jazz':10 'jpop':31 'lilli':7B 'line':8B 'loc':24,27,29 'oldies':12 'otomo':14 'r':1A 'rgb':4A 'spangle':5B 'trace':9C 'vbr':22,23 'yoshihide':15
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'downtempo', 'electronica', 'post rock', 'japanese']
                                        'tag_date'  2005
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1621699794.9944754  (2021-05-22 18:09:54)
                             'size'  6682229