======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '141'
                                          'artist'  'Bill Monroe bluegrass'
                                     'text_people'  ''
                                         'release'  'Bill Monroe'
                                           'title'  'Nine pound hammer'
                                           'quals'  ("['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-PLAY-2', "
 "'q-bass-1', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-OLDST-1', 'q-drums-1', 'q-other-3', "
 "'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'prerock-country'
                                             'bpm'  '115.7'
                                             'key'  '8B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Bill Monroe'
'TBPM' (BPM (beats per minute))                     '115.7'
'TCON' (Content type, a.k.a. Genre)                 'prerock-country'
'TIT2' (Title/songname/content description)         'Nine pound hammer'
'TKEY' (Initial key)                                '8B'
'TPE1' (Lead performer(s)/Soloist(s))               'Bill Monroe'
'TPE2' (Band/orchestra/accompaniment)               'Bill Monroe bluegrass'
'TXXX:MusicMagic Data'                              'AQEBWpKyhiyxeqDgg3RZblNNgAGBt4kJOEmxdguGgnz/SoABgAEtPK3HgAHhiMtjgVuAAeeLqu3dAYABgAGuhCaU4Zy1F7VcgAKAAQ=='
'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'                                  '2'
'TXXX:Q-MIXBEAT'                                    '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-PLAY'                                       '2'
'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'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.65 dB'
'TXXX:replaygain_track_peak'                        '0.490373'

========================== row from database ==========================
                                              'id'  1494991
                                            'path'  /data/Music/Other/Pa/Country/Bill Monroe bluegrass/Nine pound hammer.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  141
                                           'genre'  prerock-country
                                        'filesize'  2837061
                                           'mtime'  1678464282
                                   'redo_metaread'  0
                                        'rest_str'   Pa Country prerock country
                                      'tag_artist'  Bill Monroe bluegrass
                                     'tag_release'  Bill Monroe
                                       'tag_title'  Nine pound hammer
                                             'bpm'  115.7
                                    'search_title'  'hammer':3 'nine':1 'pound':2
                                   'search_artist'  'bill':1 'bluegrass':3 'monroe':2
                                  'search_release'  'bill':1 'monroe':2
                                     'search_rest'  'country':2 'pa':1 'prerock':3
                                    'search_combo'  'bill':4B,7C 'bluegrass':6B 'country':10 'hammer':3A 'monroe':5B,8C 'nine':1A 'pa':9 'pound':2A 'prerock':11
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  8B
                                           'quals'  ['Q-HAP-3', 'Q-GRIT-2', 'Q-BUSY-3', 'Q-SYN-1', 'Q-UNU-1', 'Q-PLAY-2', 'q-bass-1', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-OLDST-1', 'q-drums-1', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'Q-HHRNBTT-1', 'Q-MIXBEAT-1', 'Q-LOCALNESS-2']
                                      'lastfmtags'  []
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1678464282.1178296  (2023-03-10 17:04:42)
                             'size'  2837061