======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '135'
                                          'artist'  'Flanders and Swann'
                                     'text_people'  ''
                                         'release'  'The Bestiary of Flanders and S'
                                           'title'  'The War of 14-18'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-OLDST-1', "
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                                      'lastfmtags'  "['english', 'comedy', 'british', 'humour', 'word play']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '25'
                                      'tracktotal'  ''
                                            'date'  '1964'
                                        'comments'  ''
                                           'genre'  'entertaining-comedians'
                                             'bpm'  '123.859'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'COMM:ID3v1 Comment:XXX'                            ' 000002B9 000002B8 00001E9A'
'TALB' (Album/Movie/Show title)                     'The Bestiary of Flanders and S'
'TBPM' (BPM (beats per minute))                     '123.859'
'TCON' (Content type, a.k.a. Genre)                 'entertaining-comedians'
'TDRC' (Recording time)                             '1964'
'TIT2' (Title/songname/content description)         'The War of 14-18'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'Flanders and Swann'
'TRCK' (Track number/Position in set)               '25'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '2'
'TXXX:lastfmtags'                                   ['english', 'comedy', 'british', 'humour', 'word play']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.89 dB'
'TXXX:replaygain_track_peak'                        '0.606947'

========================== row from database ==========================
                                              'id'  1312077
                                            'path'  /data/Music/Bulk/00spent/Flanders & Swann/The Bestiary (& Extiary) Of Flanders And/3-25 The War Of 14-18.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  135
                                           'genre'  entertaining-comedians
                                        'filesize'  3261283
                                           'mtime'  1620647281
                                   'redo_metaread'  0
                                        'rest_str'   00spent & (& Extiary) Of And 3 25 Of entertaining comedians
                                      'tag_artist'  Flanders and Swann
                                     'tag_release'  The Bestiary of Flanders and S
                                       'tag_title'  The War of 14-18
                                             'bpm'  123.859
                                    'search_title'  '14':4 '1418':6 '18':5 'of':3 'the':1 'war':2
                                   'search_artist'  'and':2 'flanders':1 'swann':3
                                  'search_release'  'and':5 'bestiary':2 'flanders':4 'of':3 's':6 'the':1
                                     'search_rest'  '00spent':1 '25':7 '3':6 'and':5 'comedians':9 'entertaining':8 'extiary':2,3 'of':4
                                    'search_combo'  '00spent':16 '14':4A '1418':6A '18':5A '25':22 '3':21 'and':8B,14C,20 'bestiary':11C 'comedians':24 'entertaining':23 'extiary':17,18 'flanders':7B,13C 'of':3A,12C,19 's':15C 'swann':9B 'the':1A,10C 'war':2A
                                    'tag_tracknum'  25
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-1', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-2', 'q-other-2', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['english', 'comedy', 'british', 'humour', 'word play']
                                        'tag_date'  1964
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620647281.377278  (2021-05-10 13:48:01)
                             'size'  3261283