======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '149'
                                          'artist'  'The Animals'
                                     'text_people'  ''
                                         'release'  'The Animals Original Hits'
                                           'title'  "Don't Let Me Be Misunderstood"
                                           'quals'  ("['Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-OLDST-2', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-4', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-4', 'q-mixbeat-2']")
                                      'lastfmtags'  "['british', 'rock', 'oldies', '60s', 'classic rock']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '3'
                                      'tracktotal'  ''
                                            'date'  '2002'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '112.134'
                                             'key'  '10A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'The Animals Original Hits'
'TBPM' (BPM (beats per minute))                     '112.134'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '2002'
'TIT2' (Title/songname/content description)         "Don't Let Me Be Misunderstood"
'TKEY' (Initial key)                                '10A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Animals'
'TRCK' (Track number/Position in set)               '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['british', 'rock', 'oldies', '60s', 'classic rock']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '4'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+0.92 dB'
'TXXX:replaygain_track_peak'                        '0.511452'

========================== row from database ==========================
                                              'id'  1514367
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Animals/MBZ;#The Animals;#The Animals Original Hits;#03;#Don_t Let Me Be Misunderstood.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  149
                                           'genre'  rock-cppex
                                        'filesize'  3594631
                                           'mtime'  1620737311
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic MBZ;#The Animals;#The Hits;#03;#Don_t rock cppex
                                      'tag_artist'  The Animals
                                     'tag_release'  The Animals Original Hits
                                       'tag_title'  Don't Let Me Be Misunderstood
                                             'bpm'  112.134
                                    'search_title'  'be':6 'don':1 'dont':3 'let':4 'me':5 'misunderstood':7 't':2
                                   'search_artist'  'animals':2 'the':1
                                  'search_release'  'animals':2 'hits':4 'original':3 'the':1
                                     'search_rest'  '00poprockelectronic':1 '03':11,15 'animals':6,8 'cppex':19 'don':12,16 'hits':10,14 'mbz':2,4 'rock':18 't':13,17 'the':3,5,7,9
                                    'search_combo'  '00poprockelectronic':14 '03':24,28 'animals':9B,11C,19,21 'be':6A 'cppex':32 'don':1A,25,29 'dont':3A 'hits':13C,23,27 'let':4A 'mbz':15,17 'me':5A 'misunderstood':7A 'original':12C 'rock':31 't':2A,26,30 'the':8B,10C,16,18,20,22
                                    'tag_tracknum'  3
                                      'num_images'  0
                                             'key'  10A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-4', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['british', 'rock', 'oldies', '60s', 'classic rock']
                                        'tag_date'  2002
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737310.754665  (2021-05-11 14:48:30)
                             'size'  3594631