======================== unified (from filesystem) ========================
                                         'bitrate'  '96.0'
                                        'duration'  '278'
                                          'artist'  'Preservation Hall Jazz Band'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The old rugged cross'
                                           'quals'  ("['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-2', 'Q-CHART-2', "
 "'q-drums-1', 'q-other-3', 'q-piano-2', 'q-vocals-4', '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'  '01'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-jb-jazz'
                                             'bpm'  '85.0'
                                             'key'  '6B'
                                        'acoustid'  ''
rest: ''

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

'COMM::XXX'                                         '0000012F 000000C8 00000CE9 0'
'COMM:iTunNORM:eng'                                 (' 0000012F 000000C8 00000CE9 00000533 00024A07 00027117 0000325E 000028B1 '
 '00024A07 0003F7A0')
'TBPM' (BPM (beats per minute))                     '85.0'
'TCON' (Content type, a.k.a. Genre)                 'prerock-jb-jazz'
'TIT2' (Title/songname/content description)         'The old rugged cross'
'TKEY' (Initial key)                                '6B'
'TPE1' (Lead performer(s)/Soloist(s))               'Preservation Hall Jazz Band'
'TRCK' (Track number/Position in set)               '01'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'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'                                       '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '-0.02 dB'
'TXXX:replaygain_track_peak'                        '0.802898'

========================== row from database ==========================
                                              'id'  1495164
                                            'path'  /data/Music/Other/Pa/Jazz/Preservation Hall JB/The old rugged cross.mp3
                                         'working'  None
                                         'bitrate'  96
                                    'duration_sec'  278
                                           'genre'  prerock-jb-jazz
                                        'filesize'  3347417
                                           'mtime'  1678988639
                                   'redo_metaread'  0
                                        'rest_str'   Pa JB prerock jb jazz
                                      'tag_artist'  Preservation Hall Jazz Band
                                     'tag_release'  None
                                       'tag_title'  The old rugged cross
                                             'bpm'  85.0
                                    'search_title'  'cross':4 'old':2 'rugged':3 'the':1
                                   'search_artist'  'band':4 'hall':2 'jazz':3 'preservation':1
                                  'search_release'  
                                     'search_rest'  'jazz':4 'jb':2 'pa':1 'prerock':3
                                    'search_combo'  'band':8B 'cross':4A 'hall':6B 'jazz':7B,12 'jb':10 'old':2A 'pa':9 'prerock':11 'preservation':5B 'rugged':3A 'the':1A
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  6B
                                           'quals'  ['Q-HAP-2', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-PLAY-3', 'q-bass-2', 'Q-CHART-2', 'q-drums-1', 'q-other-3', 'q-piano-2', 'q-vocals-4', 'Q-SYN-1', 'Q-UNU-1', 'Q-JZFKS-3', 'Q-OLDST-1', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678988639.3427274  (2023-03-16 18:43:59)
                             'size'  3347417