======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '164'
                                          'artist'  'Yoko Kanno & The Seatbelts'
                                     'text_people'  ''
                                         'release'  'Cowboy Bebop OST (Music Only)'
                                           'title'  'Cats on Mars'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['jazz', 'blues', 'soundtrack', 'japanese', 'anime']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '20'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '134.914'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'TALB' (Album/Movie/Show title)                     'Cowboy Bebop OST (Music Only)'
'TBPM' (BPM (beats per minute))                     '134.914'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         'Cats on Mars'
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'Yoko Kanno & The Seatbelts'
'TPOS' (Part of a set)                              '1'
'TRCK' (Track number/Position in set)               '20'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['jazz', 'blues', 'soundtrack', 'japanese', 'anime']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.79 dB'
'TXXX:replaygain_track_peak'                        '0.351577'

========================== row from database ==========================
                                              'id'  476748
                                            'path'  /data/Music/Bulk/0soundtrack/Cowboy Bebop - CD 1/20 - Cats on Mars.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  164
                                           'genre'  soundtrack-video
                                        'filesize'  7057271
                                           'mtime'  1621490005
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack CD 1 20 soundtrack video
                                      'tag_artist'  Yoko Kanno & The Seatbelts
                                     'tag_release'  Cowboy Bebop OST (Music Only)
                                       'tag_title'  Cats on Mars
                                             'bpm'  134.914
                                    'search_title'  'cats':1 'mars':3 'on':2
                                   'search_artist'  'kanno':2 'seatbelts':4 'the':3 'yoko':1
                                  'search_release'  'bebop':2 'cowboy':1 'music':4,5 'only':6,7 'ost':3
                                     'search_rest'  '0soundtrack':1 '1':3 '20':4 'cd':2 'soundtrack':5 'video':6
                                    'search_combo'  '0soundtrack':15 '1':17 '20':18 'bebop':9C 'cats':1A 'cd':16 'cowboy':8C 'kanno':5B 'mars':3A 'music':11C,12C 'on':2A 'only':13C,14C 'ost':10C 'seatbelts':7B 'soundtrack':19 'the':6B 'video':20 'yoko':4B
                                    'tag_tracknum'  20
                                      'num_images'  1
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-4', 'q-syn-2', 'q-chart-2', 'q-other-1', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['jazz', 'blues', 'soundtrack', 'japanese', 'anime']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621490005.1948352  (2021-05-20 07:53:25)
                             'size'  7057271