======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '281'
                                          'artist'  'Sound 8'
                                     'text_people'  ''
                                         'release'  'Sound 8: Background Music For Your Personal Movies'
                                           'title'  'Music For All Kinds Of Fun'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-1', 'q-busy-2', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['library music']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '12'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'soundtrack-video'
                                             'bpm'  '134.110'
                                             'key'  '9B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM::eng'                                         'blog.wfmu.org'
'COMM:ID3v1 Comment:XXX'                            'blog.wfmu.org'
'TALB' (Album/Movie/Show title)                     'Sound 8: Background Music For Your Personal Movies'
'TBPM' (BPM (beats per minute))                     '134.110'
'TCON' (Content type, a.k.a. Genre)                 'soundtrack-video'
'TIT2' (Title/songname/content description)         'Music For All Kinds Of Fun'
'TKEY' (Initial key)                                '9B'
'TPE1' (Lead performer(s)/Soloist(s))               'Sound 8'
'TRCK' (Track number/Position in set)               '12'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   'library music'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.29 dB'
'TXXX:replaygain_track_peak'                        '0.494738'

========================== row from database ==========================
                                              'id'  644964
                                            'path'  /data/Music/Bulk/0soundtrack/background music for your personal movies/336_12_Sound_8_-_Music_For_All_Kinds_Of_Fun.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  281
                                           'genre'  soundtrack-video
                                        'filesize'  7747911
                                           'mtime'  1636923613
                                   'redo_metaread'  0
                                        'rest_str'   0soundtrack background music for your personal movies 336_12_Sound_8_ _Music_For_All_Kinds_Of_Fun soundtrack video
                                      'tag_artist'  Sound 8
                                     'tag_release'  Sound 8: Background Music For Your Personal Movies
                                       'tag_title'  Music For All Kinds Of Fun
                                             'bpm'  134.11
                                    'search_title'  'all':3 'for':2 'fun':6 'kinds':4 'music':1 'of':5
                                   'search_artist'  '8':2 'sound':1
                                  'search_release'  '8':2,3 'background':4 'for':6 'movies':9 'music':5 'personal':8 'sound':1 'your':7
                                     'search_rest'  '0soundtrack':1 '12':9 '336':8 '8':11 'all':14 'background':2 'for':4,13 'fun':17 'kinds':15 'movies':7 'music':3,12 'of':16 'personal':6 'sound':10 'soundtrack':18 'video':19 'your':5
                                    'search_combo'  '0soundtrack':18 '12':26 '336':25 '8':8B,10C,11C,28 'all':3A,31 'background':12C,19 'for':2A,14C,21,30 'fun':6A,34 'kinds':4A,32 'movies':17C,24 'music':1A,13C,20,29 'of':5A,33 'personal':16C,23 'sound':7B,9C,27 'soundtrack':35 'video':36 'your':15C,22
                                    'tag_tracknum'  12
                                      'num_images'  1
                                             'key'  9B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-1', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  ['library music']
                                        'tag_date'  
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636923612.534624  (2021-11-14 22:00:12)
                             'size'  7747911