======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '256'
                                          'artist'  'David Bowie'
                                     'text_people'  ''
                                         'release'  'The Man Who Sold the World'
                                           'title'  'She Shook Me Cold'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-4', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
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                                      'lastfmtags'  "['classic rock', '80s', 'alternative', 'rock', 'glam rock']"
                                     'discogstags'  "['glam', 'blues rock', 'alternative rock', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '7'
                                      'tracktotal'  '13'
                                            'date'  '1990'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-eos;set-pl-sced'
                                             'bpm'  '140'
                                             'key'  '11A'
                                        'acoustid'  'de8c08ae-123d-4576-8754-5d7e03b96fbb'
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:iTunNORM:eng'                                 (' 00000317 000003BA 000011C0 00000E77 000382B5 000382B5 0000486D 00004F1D '
 '00015FA7 0003829E')
'TALB' (Album/Movie/Show title)                     'The Man Who Sold the World'
'TBPM' (BPM (beats per minute))                     '140'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-eos', 'set-pl-sced']
'TDOR' (Original release time)                      '1970'
'TDRC' (Recording time)                             '1990'
'TIT2' (Title/songname/content description)         'She Shook Me Cold'
'TKEY' (Initial key)                                '11A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'David Bowie'
'TPE2' (Band/orchestra/accompaniment)               'David Bowie'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Rykodisc'
'TRCK' (Track number/Position in set)               '7/13'
'TSO2'                                              'Bowie, David'
'TSOP' (Performer sort order)                       'Bowie, David'
'TSRC' (ISRC (international standard recording code))  'USJT11500098/USJT19900020'
'TXXX:ASIN'                                         'B0000009NG'
'TXXX:Acoustid Id'                                  'de8c08ae-123d-4576-8754-5d7e03b96fbb'
'TXXX:Artists'                                      'David Bowie'
'TXXX:CATALOGNUMBER'                                'RCD 10132'
'TXXX:MusicBrainz Album Artist Id'                  '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Album Id'                         '246a9545-4a25-3204-a817-e52f9e5ae730'
'TXXX:MusicBrainz Album Release Country'            'US'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '5441c29d-3602-4898-b1a1-b77fa23b8e50'
'TXXX:MusicBrainz Release Group Id'                 '2536a41d-fde9-35d5-a6c6-cd4d94ffd916'
'TXXX:MusicBrainz Release Track Id'                 '4aa7a8d3-b225-3882-a693-ccdda747a19b'
'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:SCRIPT'                                       'Latn'
'TXXX:discogstags'                                  ['glam', 'blues rock', 'alternative rock', 'rock']
'TXXX:lastfmtags'                                   ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
'TXXX:originalyear'                                 '1970'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-1.70 dB'
'TXXX:replaygain_track_peak'                        '0.785883'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'04670428-8d76-47aa-a7aa-77d5f84115b4')
'USLT::XXX'                                         ('We met upon a hill, the night was cool & still\r\n'
 'She sucked my dormant will\r\n'
 'Mother, she blew my brain. I will go back again\r\n'
 'My God, she shook my cold.\r\n'
 '\r\n'
 'I had no time to spare, I grabbed her golden hair\r\n'
 'And threw her to the ground.\r\n'
 'Father, she caved my head. Oh Lord, the things she said\r\n'
 'My God, she should be told.\r\n'
 '\r\n'
 'I was very smart, broke the gentle hearts\r\n'
 'Of many young virgins\r\n'
 'I was quick on the ball, left them so lonely\r\n'
 "They'd just give up trying.\r\n"
 'Then she took my head, smashed it up,\r\n'
 'Kept my young blood rising,\r\n'
 'Crushed me mercilessly, kept me going around\r\n'
 "So she don't know I crave her so\r\n"
 '\r\n'
 "I'll give my love in vain, to reach that peak again\r\n"
 'We met upon a hill\r\n'
 'Mother, she blew my brain, I will go back again\r\n'
 'My God, she shook me cold.')

========================== row from database ==========================
                                              'id'  379593
                                            'path'  /data/Music/Bulk/00singer-songwriter-eos/David Bowie/[1971] The Man Who Sold The World/07 She Shook Me Cold.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  256
                                           'genre'  ifs-songwriter-eos;set-pl-sced
                                        'filesize'  4200372
                                           'mtime'  1636400843
                                   'redo_metaread'  0
                                        'rest_str'   00singer songwriter eos [1971] 07 ifs songwriter eos;set pl sced
                                      'tag_artist'  David Bowie
                                     'tag_release'  The Man Who Sold the World
                                       'tag_title'  She Shook Me Cold
                                             'bpm'  140.0
                                    'search_title'  'cold':4 'me':3 'she':1 'shook':2
                                   'search_artist'  'bowie':2 'david':1
                                  'search_release'  'man':2 'sold':4 'the':1 'who':3 'world':5
                                     'search_rest'  '00singer':1 '1971':4,5 'eos':3,7,9 'ifs':6 'pl':11 'sced':12 'set':8,10 'songwriter':2
                                    'search_combo'  '00singer':12 '1971':15,16 'bowie':6B 'cold':4A 'david':5B 'eos':14,18,20 'ifs':17 'man':8C 'me':3A 'pl':22 'sced':23 'set':19,21 'she':1A 'shook':2A 'sold':10C 'songwriter':13 'the':7C 'who':9C 'world':11C
                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  11A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', '80s', 'alternative', 'rock', 'glam rock']
                                        'tag_date'  1990
                                     'discogstags'  ['glam', 'blues rock', 'alternative rock', 'rock']

============================== file details ==============================
                                           'mtime'  1636400843.090336  (2021-11-08 20:47:23)
                             'size'  4200372