======================== unified (from filesystem) ========================
                                         'bitrate'  '320.0'
                                        'duration'  '134'
                                          'artist'  'The Dream Dusters Featuring Kenny at the Hammond'
                                     'text_people'  ''
                                         'release'  'A year in your garden spring'
                                           'title'  'Song Of India'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', 'Q-UNU-1', "
 "'Q-OLDST-3', 'q-syn-2', 'q-bass-1', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-1', 'q-drums-1', 'q-other-4', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  ''
                                            'date'  '1960'
                                        'comments'  ''
                                           'genre'  'electronic'
                                             'bpm'  '130.1'
                                             'key'  '5B'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=1, count=0)
'TALB' (Album/Movie/Show title)                     'A year in your garden spring'
'TBPM' (BPM (beats per minute))                     '130.1'
'TCON' (Content type, a.k.a. Genre)                 'electronic'
'TDRC' (Recording time)                             '1960-03-31'
'TIT2' (Title/songname/content description)         'Song Of India'
'TKEY' (Initial key)                                '5B'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dream Dusters Featuring Kenny at the Hammond'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '9'
'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:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.44 dB'
'TXXX:replaygain_track_peak'                        '0.705727'

========================== row from database ==========================
                                              'id'  1386254
                                            'path'  /data/Music/Bulk/00exnnpjpsprgttidm/Former Selves - va - a year in your garden spring_mixtape (calm in trees, mayo 2015)/47 The Dream Dusters Featuring Kenny at the Hammond - Song Of India.mp3
                                         'working'  None
                                         'bitrate'  320
                                    'duration_sec'  134
                                           'genre'  electronic
                                        'filesize'  5491256
                                           'mtime'  1636912507
                                   'redo_metaread'  0
                                        'rest_str'   00exnnpjpsprgttidm Former Selves va spring_mixtape (calm trees, mayo 2015) 47 electronic
                                      'tag_artist'  The Dream Dusters Featuring Kenny at the Hammond
                                     'tag_release'  A year in your garden spring
                                       'tag_title'  Song Of India
                                             'bpm'  130.1
                                    'search_title'  'india':3 'of':2 'song':1
                                   'search_artist'  'at':6 'dream':2 'dusters':3 'featuring':4 'hammond':7 'kenny':5 'the':1
                                  'search_release'  'a':1 'garden':5 'in':3 'spring':6 'year':2 'your':4
                                     'search_rest'  '2015':11,12 '47':13 'calm':6,7 'electronic':14 'former':1 'mayo':10 'mixtape':5 'selves':2 'spring':4 'trees':8,9 'va':3
                                    'search_combo'  '2015':27,28 '47':29 'a':11C 'at':9B 'calm':22,23 'dream':5B 'dusters':6B 'electronic':30 'featuring':7B 'former':17 'garden':15C 'hammond':10B 'in':13C 'india':3A 'kenny':8B 'mayo':26 'mixtape':21 'of':2A 'selves':18 'song':1A 'spring':16C,20 'the':4B 'trees':24,25 'va':19 'year':12C 'your':14C
                                    'tag_tracknum'  9
                                      'num_images'  1
                                             'key'  5B
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-1', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-3', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1960
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1636912507.4975898  (2021-11-14 18:55:07)
                             'size'  5491256