======================== unified (from filesystem) ========================
                                         'bitrate'  '185.646'
                                        'duration'  '229'
                                          'artist'  'SUNN 0）））'
                                     'text_people'  ''
                                         'release'  'Altar'
                                           'title'  'N.L.T.'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-3', 'q-play-3', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '2'
                                      'tracktotal'  ''
                                            'date'  '2006'
                                        'comments'  ''
                                           'genre'  'electronic-drone'
                                             'bpm'  '144.5'
                                             'key'  '2A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.OTHER (Other) b''
                                     
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'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:C\x00D\x00J\x00o\x00u\x00r\x00n\x00a\x00l\x00 \x00J\x00a\x00p\x00a\x00n\x00\x00\x00'  PRIV(owner='WM/Provider', data=b'C\x00D\x00J\x00o\x00u\x00r\x00n\x00a\x00l\x00 \x00J\x00a\x00p\x00a\x00n\x00\x00\x00')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'PRIV:WM/WMCollectionGroupID:û·FÕ:¥SK´Å\x15?evbÅ'   PRIV(owner='WM/WMCollectionGroupID', data=b'\xfb\xb7F\xd5:\xa5SK\xb4\xc5\x15?evb\xc5')
'PRIV:WM/WMCollectionID:û·FÕ:¥SK´Å\x15?evbÅ'        PRIV(owner='WM/WMCollectionID', data=b'\xfb\xb7F\xd5:\xa5SK\xb4\xc5\x15?evb\xc5')
'PRIV:WM/WMContentID:\x1ac®\x84d£!G\x8dîu\x15Qø£/'  PRIV(owner='WM/WMContentID', data=b'\x1ac\xae\x84d\xa3!G\x8d\xeeu\x15Q\xf8\xa3/')
'TALB' (Album/Movie/Show title)                     'Altar'
'TBPM' (BPM (beats per minute))                     '144.5'
'TCON' (Content type, a.k.a. Genre)                 'electronic-drone'
'TDRC' (Recording time)                             '2006'
'TIT2' (Title/songname/content description)         'N.L.T.'
'TKEY' (Initial key)                                '2A'
'TPE1' (Lead performer(s)/Soloist(s))               'Sunn O))) & Boris'
'TPE2' (Band/orchestra/accompaniment)               'SUNN 0）））'
'TPUB' (Publisher)                                  'ＩＮＯＸＩＡ\u3000Ｒｅｃｏｒｄｓ'
'TRCK' (Track number/Position in set)               '2'
'TSSE' (Software/Hardware and settings used for encoding)  'LAME v3.96.1'
'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:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-6.06 dB'
'TXXX:replaygain_track_peak'                        '0.842680'

========================== row from database ==========================
                                              'id'  1113129
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/sunn o))) - the iron soul of nothing/02 n.l.t..mp3
                                         'working'  None
                                         'bitrate'  185
                                    'duration_sec'  229
                                           'genre'  electronic-drone
                                        'filesize'  5447904
                                           'mtime'  1636912179
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm sunn o))) the iron soul of nothing 02 n.l.t. electronic drone
                                      'tag_artist'  SUNN 0）））
                                     'tag_release'  Altar
                                       'tag_title'  N.L.T.
                                             'bpm'  144.5
                                    'search_title'  'l':2 'n':1 'nlt':4 't':3
                                   'search_artist'  '0':2,3,4 'sunn':1
                                  'search_release'  'altar':1
                                     'search_rest'  'drone':14 'electronic':13 'iron':5 'l':10 'n':9 'nlt':12 'nothing':8 'o':2,3 'of':7 'soul':6 'sunn':1 't':11 'the':4
                                    'search_combo'  '0':6B,7B,8B 'altar':9C 'drone':23 'electronic':22 'iron':14 'l':2A,19 'n':1A,18 'nlt':4A,21 'nothing':17 'o':11,12 'of':16 'soul':15 'sunn':5B,10 't':3A,20 'the':13
                                    'tag_tracknum'  2
                                      'num_images'  1
                                             'key'  2A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-4', 'q-syn-3', 'q-chart-2', 'q-other-2', 'Q-HAP-2', 'q-bass-4', 'q-grit-3']
                                      'lastfmtags'  []
                                        'tag_date'  2006
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912178.5765173  (2021-11-14 18:49:38)
                             'size'  5447904