======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '292'
                                          'artist'  'The Vogue'
                                     'text_people'  ''
                                         'release'  'As Brass and Satin'
                                           'title'  'Howl Of Hounds'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['indie', 'new wave', 'jazz', 'experimental', 'under 2000 listeners']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '5'
                                      'tracktotal'  '8'
                                            'date'  '2000'
                                        'comments'  ''
                                           'genre'  'ifs-songwriter-indie-unsorted;set-pl-sced'
                                             'bpm'  '144.852'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:ID3v1 Comment:XXX'                            ' 00001047 00000BD5 00006BD2'
'COMM:iTunNORM:eng'                                 (' 00001047 00000BD5 00006BD2 00004FC4 0002A6AC 0002A6AC 000086FB 000085DF '
 '00032F82 00031BEB')
'COMM:iTunSMPB:eng'                                 (' 00000000 00000210 00000834 0000000000C4923C 00000000 00000000 00000000 '
 '00000000 00000000 00000000 00000000 00000000')
'COMM:iTunes_CDDB_IDs:eng'                          '8+AA4411BD3B88BB339DCF57A86346BDCB+901137'
'TALB' (Album/Movie/Show title)                     'As Brass and Satin'
'TBPM' (BPM (beats per minute))                     '144.852'
'TCON' (Content type, a.k.a. Genre)                 ['ifs-songwriter-indie-unsorted', 'set-pl-sced']
'TDRC' (Recording time)                             '2000'
'TENC' (Encoded by)                                 'iTunes v6.0.4'
'TIT2' (Title/songname/content description)         'Howl Of Hounds'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Vogue'
'TPE2' (Band/orchestra/accompaniment)               'The Vogue'
'TRCK' (Track number/Position in set)               '5/8'
'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:lastfmtags'                                   ['indie', 'new wave', 'jazz', 'experimental', 'under 2000 listeners']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-0.41 dB'
'TXXX:replaygain_track_peak'                        '0.440676'

========================== row from database ==========================
                                              'id'  1335413
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Vogue/[2000] As Brass and Satin/05 Howl Of Hounds.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  292
                                           'genre'  ifs-songwriter-indie-unsorted;set-pl-sced
                                        'filesize'  11704237
                                           'mtime'  1642256471
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic [2000] 05 ifs songwriter indie unsorted;set pl sced
                                      'tag_artist'  The Vogue
                                     'tag_release'  As Brass and Satin
                                       'tag_title'  Howl Of Hounds
                                             'bpm'  144.852
                                    'search_title'  'hounds':3 'howl':1 'of':2
                                   'search_artist'  'the':1 'vogue':2
                                  'search_release'  'and':3 'as':1 'brass':2 'satin':4
                                     'search_rest'  '00poprockelectronic':1 '2000':2,3 'ifs':4 'indie':6 'pl':11 'sced':12 'set':8,10 'songwriter':5 'unsorted':7,9
                                    'search_combo'  '00poprockelectronic':10 '2000':11,12 'and':8C 'as':6C 'brass':7C 'hounds':3A 'howl':1A 'ifs':13 'indie':15 'of':2A 'pl':20 'satin':9C 'sced':21 'set':17,19 'songwriter':14 'the':4B 'unsorted':16,18 'vogue':5B
                                    'tag_tracknum'  5
                                      'num_images'  1
                                             'key'  8A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', 'q-chart-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', 'q-mixbeat-1']
                                      'lastfmtags'  ['indie', 'new wave', 'jazz', 'experimental', 'under 2000 listeners']
                                        'tag_date'  2000
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642256470.5298846  (2022-01-15 15:21:10)
                             'size'  11704237