======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '339'
                                          'artist'  'Yoko Kanno'
                                     'text_people'  ''
                                         'release'  'Cowboy Bebop OST 3: Blue'
                                           'title'  'Adieu'
                                           'quals'  ("['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', "
 "'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['soundtrack', 'japanese', 'anime', 'jazz', 'instrumental']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1999'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '112.947'
                                             'key'  '5A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Cowboy Bebop OST 3: Blue'
'TBPM' (BPM (beats per minute))                     '112.947'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '1999'
'TIT2' (Title/songname/content description)         'Adieu'
'TKEY' (Initial key)                                '5A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yoko Kanno'
'TRCK' (Track number/Position in set)               '9'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-PIANO'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['soundtrack', 'japanese', 'anime', 'jazz', 'instrumental']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.70 dB'
'TXXX:replaygain_track_peak'                        '0.709512'

========================== row from database ==========================
                                              'id'  258195
                                            'path'  /data/Music/Bulk/0soundtrack/Yoko Kanno/Cowboy Bebop Ost Iii  Blue/MBZ;#Yoko Kanno;#Cowboy Bebop OST III Blue ;#09;#Adieu.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  339
                                           'genre'  soundtrack-video
                                        'filesize'  8161088
                                           'mtime'  1642340807
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack Ost Iii MBZ;#Yoko Kanno;#Cowboy III ;#09;#Adieu soundtrack video
                                      'tag_artist'  Yoko Kanno
                                     'tag_release'  Cowboy Bebop OST 3: Blue
                                       'tag_title'  Adieu
                                             'bpm'  112.947
                                    'search_title'  'adieu':1
                                   'search_artist'  'kanno':2 'yoko':1
                                  'search_release'  '3':4,5 'bebop':2 'blue':6 'cowboy':1 'ost':3
                                     'search_rest'  '09':12,14 '0soundtrack':1 'adieu':13,15 'cowboy':9,11 'iii':3 'kanno':8,10 'mbz':4,6 'ost':2 'soundtrack':16 'video':17 'yoko':5,7
                                    'search_combo'  '09':21,23 '0soundtrack':10 '3':7C,8C 'adieu':1A,22,24 'bebop':5C 'blue':9C 'cowboy':4C,18,20 'iii':12 'kanno':3B,17,19 'mbz':13,15 'ost':6C,11 'soundtrack':25 'video':26 'yoko':2B,14,16
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  5A
                                           'quals'  ['Q-HAP-2', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-2', 'q-grit-2', 'q-play-3', 'Q-PIANO-3', 'q-chart-2', 'q-drums-1', 'q-other-1', 'q-vocals-4', 'q-mixbeat-1']
                                      'lastfmtags'  ['soundtrack', 'japanese', 'anime', 'jazz', 'instrumental']
                                        'tag_date'  1999
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1642340807.150349  (2022-01-16 14:46:47)
                             'size'  8161088