======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '218'
                                          'artist'  'The Steve Miller Band'
                                     'text_people'  ''
                                         'release'  'Greatest Hits 1974-78'
                                           'title'  ''
                                           'quals'  ("['Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-OLDST-3', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-3', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-2']")
                                      'lastfmtags'  "['classic rock', 'rock', '70s', 'psychedelic', '80s']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '8'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '110.785'
                                             'key'  '7B'
                                        'acoustid'  ''
rest: ''

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

'APIC:Cover Image'                                  type PictureType.COVER_FRONT (Cover (front)) b'Cover Image'
                                     
'COMM:ID3v1 Comment:XXX'                            'C:\\Mp3\\Steve Miller Band - J'
'COMM:MusicMatch_Path:XXX'                          'C:\\Mp3\\Steve Miller Band - Joker.mp3'
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Greatest Hits 1974-78'
'TBPM' (BPM (beats per minute))                     '110.785'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TKEY' (Initial key)                                '7B'
'TLEN' (Length)                                     '0'
'TPE1' (Lead performer(s)/Soloist(s))               'The Steve Miller Band'
'TRCK' (Track number/Position in set)               '8'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:MP3GAIN_MINMAX'                               '103,184'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['classic rock', 'rock', '70s', 'psychedelic', '80s']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.46 dB'
'TXXX:replaygain_track_peak'                        '0.692739'
'TXXX:title'                                        ['Joker', 'Steve Miller Band - Joker']

========================== row from database ==========================
                                              'id'  1534553
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Steve Miller Band__MBZ;#The Steve Miller Band;#Greatest Hits 1974-78;#08;#The Joker.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  218
                                           'genre'  rock-unsorted
                                        'filesize'  3515267
                                           'mtime'  1620385897
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Band__MBZ;#The Band;#Greatest 78;#08;#The Joker rock unsorted
                                      'tag_artist'  The Steve Miller Band
                                     'tag_release'  Greatest Hits 1974-78
                                       'tag_title'  None
                                             'bpm'  110.785
                                    'search_title'  None
                                   'search_artist'  'band':4 'miller':3 'steve':2 'the':1
                                  'search_release'  '1974':3 '197478':5 '78':4 'greatest':1 'hits':2
                                     'search_rest'  '00poprockelectronic':1 '08':13,16 '78':12,15 'band':2,5,8,10 'greatest':9,11 'joker':18 'mbz':3,6 'rock':19 'the':4,7,14,17 'unsorted':20
                                    'search_combo'  '00poprockelectronic':10 '08':22,25 '1974':7C '197478':9C '78':8C,21,24 'band':4B,11,14,17,19 'greatest':5C,18,20 'hits':6C 'joker':27 'mbz':12,15 'miller':3B 'rock':28 'steve':2B 'the':1B,13,16,23,26 'unsorted':29
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  7B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-piano-1', 'q-syn-2', 'q-chart-3', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['classic rock', 'rock', '70s', 'psychedelic', '80s']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620385897.065583  (2021-05-07 13:11:37)
                             'size'  3515267