======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '166'
                                          'artist'  'Gritty Kitty'
                                     'text_people'  ''
                                         'release'  'Mistaking Airplanes for Stars'
                                           'title'  'Porchswing'
                                           'quals'  ("['Q-HAP-3', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-2', 'q-bass-1', "
 "'Q-CHART-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-SYN-1', "
 "'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-rnb'
                                             'bpm'  '129.0'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Mistaking Airplanes for Stars'
'TBPM' (BPM (beats per minute))                     '129.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-rnb'
'TIT2' (Title/songname/content description)         'Porchswing'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Gritty Kitty'
'TRCK' (Track number/Position in set)               '13'
'TXXX:MusicBrainz Album Id'                         '957c22be-f827-4b4f-a910-ecdbc36067a2'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album'
'TXXX:MusicBrainz Artist Id'                        '2e87e968-ba0a-4c72-afa9-5b9987d835c6'
'TXXX:MusicBrainz TRM Id'                           'f42d3613-8637-48a0-9f6f-72a86c729b18'
'TXXX:MusicMagic Data'                              'AQEBYg1dhC+pRJGtgSa6BIABgAGA04pkFP+1N/d/gAEKEYABmn0Vwb1PgAGxRYjogAGAAdX00pAEToABgAGSrP0F2j2t5qdRgAKAAQ=='
'TXXX:MusicMagic Fingerprint'                       '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'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PLAY'                                       '2'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '0000e040000092064017e708338ff9c8acfcff0bff2aef4f7d2c73d3fcfcc3cb380308ff4d2f53408a4c43f1c05fe77dfc2c73c3df3e9111d14390cfced7e027e003bd3d469bb344aff50740019fe388f37372dffe6fb37e0fff3282c67343fcd8674f0d151f0304a8eb7e04020bf3c5efcf4780dfe36816e50fa417eca7f7b3f073a389124febd935fbdffdfec8b3c4ecbb97f7e273233f0f1fcfefcff7c36b0e2fc18bffda73fd965be18bffc306eff02f0fdffdfbfef58bc7a67c2cf38116c8c390f4908b5933c3bcd338cc07c7ec044fc98f73d7ce29fce786008acfdac68e9ff3f13e5da5fdbdbfce8c707789b2343ed73a3ed7a7faffff93240fcbc30303cef3cf4e339251efd3c44cf6ea5ecee3d38c0ef0fba94005efbfc0fedfa3f9f2eff44fc03fc80faa7b0a09c1b6502ae23fc70dc13fda08ccffd650e57f440ce5ae893f4cbf092b37abcc2f10feda0cdfffd446482bd184cfa3f4aa2fbcc1268a0e8120193febbefcf7aebaebdefef7ae3affdf7eefaebaebfe7eefeebaf7febefbdebafbfffefb9e7df3aebaebaebefbefbaebae79e7ee3aefbefbefbefbefbebaebafffffdec0'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.40 dB'
'TXXX:replaygain_track_peak'                        '0.382034'

========================== row from database ==========================
                                              'id'  1495332
                                            'path'  /data/Music/Other/Pa/R & B/Jerry Lee Lewis/Porchswing (Gritty Kitty, Mistaking Airplanes for Stars).mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  166
                                           'genre'  prerock-rnb
                                        'filesize'  3330892
                                           'mtime'  1621703184
                                   'redo_metaread'  0
                                        'rest_str'   Pa R & B Jerry Lee Lewis (Gritty Kitty, Stars) prerock rnb
                                      'tag_artist'  Gritty Kitty
                                     'tag_release'  Mistaking Airplanes for Stars
                                       'tag_title'  Porchswing
                                             'bpm'  129.0
                                    'search_title'  'porchswing':1
                                   'search_artist'  'gritty':1 'kitty':2
                                  'search_release'  'airplanes':2 'for':3 'mistaking':1 'stars':4
                                     'search_rest'  'b':3 'gritty':7,8 'jerry':4 'kitty':9,10 'lee':5 'lewis':6 'pa':1 'prerock':13 'r':2 'rnb':14 'stars':11,12
                                    'search_combo'  'airplanes':5C 'b':10 'for':6C 'gritty':2B,14,15 'jerry':11 'kitty':3B,16,17 'lee':12 'lewis':13 'mistaking':4C 'pa':8 'porchswing':1A 'prerock':20 'r':9 'rnb':21 'stars':7C,18,19
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-MIXBEAT-1', 'Q-OLDST-2', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-2', 'Q-SYN-1', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-2', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621703183.7220361  (2021-05-22 19:06:23)
                             'size'  3330892