======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '182'
                                          'artist'  'Iron Claw'
                                     'text_people'  'Iron Claw'
                                         'release'  'Iron Claw'
                                           'title'  "knock 'Em Dead"
                                           'quals'  ("['Q-HAP-2', 'Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', "
 "'Q-HHRNBTT-1', 'Q-SYN-2', 'Q-BUSY-3', 'Q-GRIT-2', 'Q-PLAY-3', 'q-bass-4', "
 "'Q-CHART-1', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-2', "
 "'Q-MIXBEAT-2']")
                                      'lastfmtags'  "['proto metal', 'heavy metal', 'hard rock', 'progressive rock', 'heavy psych']"
                                     'discogstags'  "['rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '14'
                                      'tracktotal'  '16'
                                            'date'  '1970'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '119.8'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

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'TALB' (Album/Movie/Show title)                     'Iron Claw'
'TBPM' (BPM (beats per minute))                     '119.8'
'TCOM' (Composer)                                   'Iron Claw'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1970-74'
'TIT2' (Title/songname/content description)         "knock 'Em Dead"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Iron Claw'
'TPE2' (Band/orchestra/accompaniment)               'Iron Claw'
'TPOS' (Part of a set)                              '1/1'
'TPUB' (Publisher)                                  'Rockadrome'
'TRCK' (Track number/Position in set)               '14/16'
'TXXX:AccurateRipDiscID'                            'ccurateRipDiscID'
'TXXX:AccurateRipResult'                            'ccurateRipResult'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '1'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'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'                                   ['proto metal', 'heavy metal', 'hard rock', 'progressive rock', 'heavy psych']
'TXXX:q-bass'                                       '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-5.49 dB'
'TXXX:replaygain_track_peak'                        '0.867389'

========================== row from database ==========================
                                              'id'  1521959
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/iron claw/iron claw - 14 - knock _em dead - 3.02.mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  182
                                           'genre'  rock-cppex
                                        'filesize'  5831741
                                           'mtime'  1636921700
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy iron claw iron claw 14 _em dead 3.02 rock cppex
                                      'tag_artist'  Iron Claw
                                     'tag_release'  Iron Claw
                                       'tag_title'  knock 'Em Dead
                                             'bpm'  119.8
                                    'search_title'  'dead':4 'em':2,3 'knock':1
                                   'search_artist'  'claw':2 'iron':1
                                  'search_release'  'claw':2 'iron':1
                                     'search_rest'  '02':7 '3':6 '302':8 'classicprogpsy':1 'claw':3 'cppex':10 'dead':5 'em':4 'iron':2 'rock':9
                                    'search_combo'  '02':15 '3':14 '302':16 'classicprogpsy':9 'claw':6B,8C,11 'cppex':18 'dead':4A,13 'em':2A,3A,12 'iron':5B,7C,10 'knock':1A 'rock':17
                                    'tag_tracknum'  14
                                      'num_images'  0
                                             'key'  10A
                                           '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-3', 'Q-SYN-2', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-4']
                                      'lastfmtags'  ['proto metal', 'heavy metal', 'hard rock', 'progressive rock', 'heavy psych']
                                        'tag_date'  1970
                                     'discogstags'  ['rock']

============================== file details ==============================
                                           'mtime'  1636921699.5431206  (2021-11-14 21:28:19)
                             'size'  5831741