======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '440'
                                          'artist'  'Troum'
                                     'text_people'  ''
                                         'release'  ''
                                           'title'  'Ga - Plaian'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-HHRNBTT-1', 'Q-JZFKS-1', 'Q-LOCALNESS-1', "
 "'Q-OLDST-3', 'q-syn-3', 'q-bass-3', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['dark ambient', 'drone', 'experimental', 'drone ambient', 'ambient']"
                                     'discogstags'  "['electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'electronic-drone'
                                             'bpm'  '136.9'
                                             'key'  '7A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '136.9'
'TCON' (Content type, a.k.a. Genre)                 'electronic-drone'
'TIT2' (Title/songname/content description)         'Ga - Plaian'
'TKEY' (Initial key)                                '7A'
'TPE1' (Lead performer(s)/Soloist(s))               'Troum'
'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:discogstags'                                  'electronic'
'TXXX:lastfmtags'                                   ['dark ambient', 'drone', 'experimental', 'drone ambient', 'ambient']
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '3'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-2.04 dB'
'TXXX:replaygain_track_peak'                        '0.442014'

========================== row from database ==========================
                                              'id'  1323442
                                            'path'  /data/Music/Bulk/00poprockelectronic/00drone/Troum - Anima Amoris [Ambient] 160 MP3/Troum - Ga - Plaian   Anima.Sknt.Ru.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  440
                                           'genre'  electronic-drone
                                        'filesize'  8808510
                                           'mtime'  1636913453
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic 00drone Anima Amoris [Ambient] 160 MP3 Anima.Sknt.Ru electronic drone
                                      'tag_artist'  Troum
                                     'tag_release'  None
                                       'tag_title'  Ga - Plaian
                                             'bpm'  136.9
                                    'search_title'  'ga':1 'plaian':2
                                   'search_artist'  'troum':1
                                  'search_release'  
                                     'search_rest'  '00drone':2 '00poprockelectronic':1 '160':7 'ambient':5,6 'amoris':4 'anima':3,9 'animaskntru':12 'drone':14 'electronic':13 'mp3':8 'ru':11 'sknt':10
                                    'search_combo'  '00drone':5 '00poprockelectronic':4 '160':10 'ambient':8,9 'amoris':7 'anima':6,12 'animaskntru':15 'drone':17 'electronic':16 'ga':1A 'mp3':11 'plaian':2A 'ru':14 'sknt':13 'troum':3B
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  7A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', '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-3', 'q-syn-3', 'q-chart-2', 'q-other-3', 'Q-HAP-2', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['dark ambient', 'drone', 'experimental', 'drone ambient', 'ambient']
                                        'tag_date'  
                                     'discogstags'  ['electronic']

============================== file details ==============================
                                           'mtime'  1636913452.823674  (2021-11-14 19:10:52)
                             'size'  8808510