======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '321'
                                          'artist'  'Agnes Strange'
                                     'text_people'  'John Westwood'
                                         'release'  'Strange Flavour'
                                           'title'  "Granny Don't Like Rock 'N' Roll"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-1', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['blues rock', 'rock', 'hard rock', 'psychedelic rock', '70s']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '141.8'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'PRIV:WM/WMCollectionID::V95.ä\x88D\x99òC\x95\x00àeæ'  PRIV(owner='WM/WMCollectionID', data=b':V95.\xe4\x88D\x99\xf2C\x95\x00\xe0e\xe6')
"PRIV:WM/WMContentID:\x9d°üZ|¿âA\x8fI'T\x0e0v\x0b"  PRIV(owner='WM/WMContentID', data=b"\x9d\xb0\xfcZ|\xbf\xe2A\x8fI'T\x0e0v\x0b")
'TALB' (Album/Movie/Show title)                     'Strange Flavour'
'TBPM' (BPM (beats per minute))                     '141.8'
'TCOM' (Composer)                                   'John Westwood'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1975'
'TIT2' (Title/songname/content description)         "Granny Don't Like Rock 'N' Roll"
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Agnes Strange'
'TPE2' (Band/orchestra/accompaniment)               'Agnes Strange'
'TPUB' (Publisher)                                  'Revola'
'TRCK' (Track number/Position in set)               '12'
'TXXX:GN_ExtData'                                   'GNXDWEcxAUo3iGZhAmHwTbr6ZM6BnE955oAoiFPQFpIPHK0in18WaFWphHG3YoPva2aaXpgDsIjfOtEg'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'rock'
'TXXX:lastfmtags'                                   ['blues rock', 'rock', 'hard rock', 'psychedelic rock', '70s']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-8.35 dB'
'TXXX:replaygain_track_peak'                        '1.083707'
'UFID:http://www.cddb.com/id3/taginfo1.html'        UFID(owner='http://www.cddb.com/id3/taginfo1.html', data=b'3CD3N96S8800152V2882F8B293858FECE2B8179E132F4D528DP5\x00')

========================== row from database ==========================
                                              'id'  1504601
                                            'path'  /data/Music/Bulk/00poprockelectronic/strange flavour/12 - granny don_t like rock _n_ roll - 5.21.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  321
                                           'genre'  rock-cppex
                                        'filesize'  10317696
                                           'mtime'  1636915303
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic strange flavour 12 granny don_t like rock _n_ roll 5.21 rock cppex
                                      'tag_artist'  Agnes Strange
                                     'tag_release'  Strange Flavour
                                       'tag_title'  Granny Don't Like Rock 'N' Roll
                                             'bpm'  141.8
                                    'search_title'  'don':2 'dont':4 'granny':1 'like':5 'n':7,8 'rock':6 'roll':9 't':3
                                   'search_artist'  'agnes':1 'strange':2
                                  'search_release'  'flavour':2 'strange':1
                                     'search_rest'  '00poprockelectronic':1 '21':12 '5':11 '521':13 'cppex':14 'don':5 'flavour':3 'granny':4 'like':7 'n':9 'rock':8 'roll':10 'strange':2 't':6
                                    'search_combo'  '00poprockelectronic':14 '21':25 '5':24 '521':26 'agnes':10B 'cppex':27 'don':2A,18 'dont':4A 'flavour':13C,16 'granny':1A,17 'like':5A,20 'n':7A,8A,22 'rock':6A,21 'roll':9A,23 'strange':11B,12C,15 't':3A,19
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-2', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-CHART-1', 'q-drums-4', 'Q-SYN-2', 'q-other-2', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['blues rock', 'rock', 'hard rock', 'psychedelic rock', '70s']
                                        'tag_date'  1975
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636915302.7380133  (2021-11-14 19:41:42)
                             'size'  10317696