======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '169'
                                          'artist'  'David Hudson'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'The Ancient Voice'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-2', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['didgeridoo', 'world', 'australian', 'australian aboriginal', 'world music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-drone'
                                             'bpm'  '100.8'
                                             'key'  '11B'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '100.8'
'TCON' (Content type, a.k.a. Genre)                 'electronic-drone'
'TIT2' (Title/songname/content description)         'The Ancient Voice'
'TKEY' (Initial key)                                '11B'
'TPE1' (Lead performer(s)/Soloist(s))               'David Hudson'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['didgeridoo', 'world', 'australian', 'australian aboriginal', 'world music']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '-0.66 dB'
'TXXX:replaygain_track_peak'                        '0.498432'

========================== row from database ==========================
                                              'id'  1425305
                                            'path'  /data/Music/Bulk/00poprockelectronic/00drone/David Hudson - The Ancient Voice.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  169
                                           'genre'  electronic-drone
                                        'filesize'  3401652
                                           'mtime'  1636912613
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00drone electronic drone
                                      'tag_artist'  David Hudson
                                     'tag_release'  None
                                       'tag_title'  The Ancient Voice
                                             'bpm'  100.8
                                    'search_title'  'ancient':2 'the':1 'voice':3
                                   'search_artist'  'david':1 'hudson':2
                                  'search_release'  
                                     'search_rest'  '00drone':2 '00poprockelectronic':1 'drone':4 'electronic':3
                                    'search_combo'  '00drone':7 '00poprockelectronic':6 'ancient':2A 'david':4B 'drone':9 'electronic':8 'hudson':5B 'the':1A 'voice':3A
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  11B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-3', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['didgeridoo', 'world', 'australian', 'australian aboriginal', 'world music']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912613.278119  (2021-11-14 18:56:53)
                             'size'  3401652