======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '189'
                                          'artist'  'Firehouse Five'
                                     'text_people'  ''
                                         'release'  'Firehouse Five'
                                           'title'  'Fire chief rag'
                                           'quals'  ("['Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-1', 'Q-CHART-2', 'q-drums-1', "
 "'q-other-4', 'q-piano-3', 'q-vocals-1', 'Q-HAP-3', 'Q-SYN-1', 'Q-UNU-1', "
 "'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz-dixiestyle'
                                             'bpm'  '96.4'
                                             'key'  'G m'  (6A)
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Firehouse Five'
'TBPM' (BPM (beats per minute))                     '96.4'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz-dixiestyle'
'TENC' (Encoded by)                                 'iTunes v4.7.1.30'
'TIT2' (Title/songname/content description)         'Fire chief rag'
'TKEY' (Initial key)                                'G m'
'TPE1' (Lead performer(s)/Soloist(s))               'Firehouse Five'
'TPE2' (Band/orchestra/accompaniment)               'Firehouse Five'
'TXXX:MusicMagic Data'                              'AgEBWNPGhZ2pPaVugoFCewyqgAGCqIZUMVu2ZwB/gIT6O6vkjrg37L9tgAHyVrt9hfaAAfWVHzL5hoABgAGt2Rw3AbG487/ugAKAAYUso+in7IJ6J2pACYOXgb6GyButquMLxIFB9QyLgJDSIuK7S4IW6cOutIKkinTqd/ev9EOIzoABrDcSyfYmvK+7rIACgAE='
'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'                                      '3'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:http://www.foosic.org/'                       '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'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.56 dB'
'TXXX:replaygain_track_peak'                        '0.537218'

========================== row from database ==========================
                                              'id'  1495382
                                            'path'  /data/Music/Other/Pa/Dixieland/Firehouse Five/Fire chief rag.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  189
                                           'genre'  prerock-jb-jazz-dixiestyle
                                        'filesize'  3805440
                                           'mtime'  1621092510
                                   'redo_metaread'  0
                                        'rest_str'   Pa Dixieland prerock jb jazz dixiestyle
                                      'tag_artist'  Firehouse Five
                                     'tag_release'  Firehouse Five
                                       'tag_title'  Fire chief rag
                                             'bpm'  96.4
                                    'search_title'  'chief':2 'fire':1 'rag':3
                                   'search_artist'  'firehouse':1 'five':2
                                  'search_release'  'firehouse':1 'five':2
                                     'search_rest'  'dixieland':2 'dixiestyle':6 'jazz':5 'jb':4 'pa':1 'prerock':3
                                    'search_combo'  'chief':2A 'dixieland':9 'dixiestyle':13 'fire':1A 'firehouse':4B,6C 'five':5B,7C 'jazz':12 'jb':11 'pa':8 'prerock':10 'rag':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  G m
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-3', 'Q-MIXBEAT-1', 'Q-OLDST-1', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-3', 'Q-UNU-1', 'q-drums-1', 'Q-SYN-1', 'q-other-4', 'Q-BUSY-3', 'Q-HAP-3', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621092509.9772391  (2021-05-15 17:28:29)
                             'size'  3805440