======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '25'
                                          'artist'  'John Baker'
                                     'text_people'  ''
                                         'release'  'The John Baker Tapes Volume 1: BBC Radiophonics 1963-1974'
                                           'title'  'Radio London: News Idents'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-2', 'q-syn-3', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']"
                                     'discogstags'  "['soundtrack', 'electronic', 'stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '36'
                                      'tracktotal'  ''
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'electronic-experimental-early'
                                             'bpm'  '120.1'
                                             'key'  '1B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         ['1',
 ' 00000409 00000339 0000139D 00000FA9 00000687 000046D0 00004336 00003AD8 '
 '00000C58 00000C8D',
 ' 00000000 00000210 00000B40 0000000000114330 00000000 000F93C2 00000000 '
 '00000000 00000000 00000000 00000000 00000000',
 ' 0000032F 00000000 00000BE0 00000000 00001430 00000000 000035D7 00000000 '
 '00001430 00000000']
'COMM:iTunes_CDDB_IDs:eng'                          '49+D1D3F33CCD6349DC4916A07581B2235A+11217159'
'PRIV:WM/UniqueFileIdentifier:A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x003\x009\x000\x009\x006\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x001\x000\x006\x000\x004\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x007\x006\x004\x000\x009\x002\x00\x00\x00'  PRIV(owner='WM/UniqueFileIdentifier', data=b'A\x00M\x00G\x00a\x00_\x00i\x00d\x00=\x00R\x00 \x00 \x001\x003\x009\x000\x009\x006\x006\x00;\x00A\x00M\x00G\x00p\x00_\x00i\x00d\x00=\x00P\x00 \x00 \x001\x000\x006\x000\x004\x002\x003\x00;\x00A\x00M\x00G\x00t\x00_\x00i\x00d\x00=\x00T\x00 \x001\x004\x007\x006\x004\x000\x009\x002\x00\x00\x00')
'PRIV:ZuneAlbumArtistMediaID:\x00\x10.G\x00\x06Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneAlbumArtistMediaID', data=b'\x00\x10.G\x00\x06\xdb\x11\x89\xca\x00\x19\xb9*93')
'PRIV:ZuneAlbumMediaID:\x00\x159v\x00\x04Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneAlbumMediaID', data=b'\x00\x159v\x00\x04\xdb\x11\x89\xca\x00\x19\xb9*93')
'PRIV:ZuneCollectionID:Úä]½Ì1nI\x91\x80ܲ\x00\x02ºz'  PRIV(owner='ZuneCollectionID', data=b'\xda\xe4]\xbd\xcc1nI\x91\x80\xdc\xb2\x00\x02\xbaz')
'PRIV:ZuneMediaID:\x00áH<\x00\x05Û\x11\x89Ê\x00\x19¹*93'  PRIV(owner='ZuneMediaID', data=b'\x00\xe1H<\x00\x05\xdb\x11\x89\xca\x00\x19\xb9*93')
'TALB' (Album/Movie/Show title)                     'The John Baker Tapes Volume 1: BBC Radiophonics 1963-1974'
'TBPM' (BPM (beats per minute))                     '120.1'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 'electronic-experimental-early'
'TDRC' (Recording time)                             '1970'
'TENC' (Encoded by)                                 'iTunes v7.7.0.43'
'TIT2' (Title/songname/content description)         'Radio London: News Idents'
'TKEY' (Initial key)                                '1B'
'TPE1' (Lead performer(s)/Soloist(s))               'John Baker'
'TPE2' (Band/orchestra/accompaniment)               'John Baker'
'TPOS' (Part of a set)                              '1/2'
'TRCK' (Track number/Position in set)               '36'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['soundtrack', 'electronic', 'stage & screen']
'TXXX:lastfmtags'                                   ['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.08 dB'
'TXXX:replaygain_track_peak'                        '0.440601'

========================== row from database ==========================
                                              'id'  770093
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/john baker - the john baker tapes volume 1 bbc radiophonics/1-36 radio london_ news idents.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  25
                                           'genre'  electronic-experimental-early
                                        'filesize'  1091689
                                           'mtime'  1636403718
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm john baker the john baker tapes volume bbc radiophonics 36 radio london_ news idents electronic experimental early
                                      'tag_artist'  John Baker
                                     'tag_release'  The John Baker Tapes Volume 1: BBC Radiophonics 1963-1974
                                       'tag_title'  Radio London: News Idents
                                             'bpm'  120.1
                                    'search_title'  'idents':5 'london':2,3 'news':4 'radio':1
                                   'search_artist'  'baker':2 'john':1
                                  'search_release'  '1':6,7 '1963':10 '19631974':12 '1974':11 'baker':3 'bbc':8 'john':2 'radiophonics':9 'tapes':4 'the':1 'volume':5
                                     'search_rest'  '36':8 'baker':2 'bbc':6 'early':15 'electronic':13 'experimental':14 'idents':12 'john':1 'london':10 'news':11 'radio':9 'radiophonics':7 'tapes':4 'the':3 'volume':5
                                    'search_combo'  '1':13C,14C '1963':17C '19631974':19C '1974':18C '36':27 'baker':7B,10C,21 'bbc':15C,25 'early':34 'electronic':32 'experimental':33 'idents':5A,31 'john':6B,9C,20 'london':2A,3A,29 'news':4A,30 'radio':1A,28 'radiophonics':16C,26 'tapes':11C,23 'the':8C,22 'volume':12C,24
                                    'tag_tracknum'  36
                                      'num_images'  1
                                             'key'  1B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-3', 'q-chart-2', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['bbc radiophonic workshop', 'all', 'electronic', 'british', 'experimental']
                                        'tag_date'  1970
                                     'discogstags'  ['soundtrack', 'electronic', 'stage & screen']

============================== file details ==============================
                                           'mtime'  1636403718.466685  (2021-11-08 21:35:18)
                             'size'  1091689