======================== unified (from filesystem) ========================
                                         'bitrate'  '128.0'
                                        'duration'  '163'
                                          'artist'  'Propagandhi'
                                     'text_people'  ''
                                         'release'  'How to Clean Everything'
                                           'title'  'Hate, Myth, Muscle, Etiquette'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-2', 'Q-HHRNBTT-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-3', 'q-play-3', "
 "'q-chart-3', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-3', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['political', 'punk rock', 'hardcore punk', 'punk', 'hardcore']"
                                     'discogstags'  "['punk', 'rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '1993'
                                        'comments'  ''
                                           'genre'  'rock-gr-punk'
                                             'bpm'  '138.797'
                                             'key'  '12B'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'How to Clean Everything'
'TBPM' (BPM (beats per minute))                     '138.797'
'TCON' (Content type, a.k.a. Genre)                 'rock-gr-punk'
'TDRC' (Recording time)                             '1993'
'TIT2' (Title/songname/content description)         'Hate, Myth, Muscle, Etiquette'
'TKEY' (Initial key)                                '12B'
'TPE1' (Lead performer(s)/Soloist(s))               'Propagandhi'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '2'
'TXXX:discogstags'                                  ['punk', 'rock']
'TXXX:lastfmtags'                                   ['political', 'punk rock', 'hardcore punk', 'punk', 'hardcore']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '3'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '3'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '3'
'TXXX:replaygain_track_gain'                        '-1.16 dB'
'TXXX:replaygain_track_peak'                        '0.459923'

========================== row from database ==========================
                                              'id'  1418243
                                            'path'  /data/Music/Bulk/00popandrock-punk-garage-surf-stoner/Propagandhi/03 -Hate,Myth,Muscle,Etiquette.mp3
                                         'working'  None
                                         'bitrate'  128
                                    'duration_sec'  163
                                           'genre'  rock-gr-punk
                                        'filesize'  2614678
                                           'mtime'  1622659126
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock punk garage surf stoner 03 Hate,Myth,Muscle,Etiquette rock gr punk
                                      'tag_artist'  Propagandhi
                                     'tag_release'  How to Clean Everything
                                       'tag_title'  Hate, Myth, Muscle, Etiquette
                                             'bpm'  138.797
                                    'search_title'  'etiquette':7 'hate':1,2 'muscle':5,6 'myth':3,4
                                   'search_artist'  'propagandhi':1
                                  'search_release'  'clean':3 'everything':4 'how':1 'to':2
                                     'search_rest'  'etiquette':8,12 'garage':2 'gr':14 'hate':5,9 'muscle':7,11 'myth':6,10 'punk':1 'rock':13 'stoner':4 'surf':3
                                    'search_combo'  'clean':11C 'etiquette':7A,20,24 'everything':12C 'garage':14 'gr':26 'hate':1A,2A,17,21 'how':9C 'muscle':5A,6A,19,23 'myth':3A,4A,18,22 'propagandhi':8B 'punk':13 'rock':25 'stoner':16 'surf':15 'to':10C
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  12B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-3', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-2', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-3', 'q-other-3', 'Q-HAP-3', 'q-bass-3', 'q-grit-3']
                                      'lastfmtags'  ['political', 'punk rock', 'hardcore punk', 'punk', 'hardcore']
                                        'tag_date'  1993
                                     'discogstags'  ['punk', 'rock']

============================== file details ==============================
                                           'mtime'  1622659125.773098  (2021-06-02 20:38:45)
                             'size'  2614678