======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '341'
                                          'artist'  'The Dude'
                                     'text_people'  ''
                                         'release'  'Specially for You'
                                           'title'  'Sunday 3am'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-OLDST-3', "
 "'Q-LOCALNESS-3', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['indie', 'alternative', 'indie rock', 'rock', 'french']"
                                     'discogstags'  "['hard house', 'hardstyle', 'electronic']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '11'
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-unsorted'
                                             'bpm'  '95.754'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'POPM:Windows Media Player 9 Series'                POPM(email='Windows Media Player 9 Series', rating=128, count=0)
'TALB' (Album/Movie/Show title)                     'Specially for You'
'TBPM' (BPM (beats per minute))                     '95.754'
'TCON' (Content type, a.k.a. Genre)                 'rock-unsorted'
'TIT2' (Title/songname/content description)         'Sunday 3am'
'TKEY' (Initial key)                                '8A'
'TPE1' (Lead performer(s)/Soloist(s))               'The Dude'
'TRCK' (Track number/Position in set)               '11'
'TXXX:FMPS_Rating'                                  '0.6'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '3'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['hard house', 'hardstyle', 'electronic']
'TXXX:lastfmtags'                                   ['indie', 'alternative', 'indie rock', 'rock', 'french']
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '2'
'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'                                     '1'
'TXXX:replaygain_track_gain'                        '+1.32 dB'
'TXXX:replaygain_track_peak'                        '0.332809'

========================== row from database ==========================
                                              'id'  1534671
                                            'path'  /data/Music/Bulk/00poprockelectronic/The Dude - Specially for You (Advance)__cifs525e.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  341
                                           'genre'  rock-unsorted
                                        'filesize'  8205719
                                           'mtime'  1621629408
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic (Advance)__cifs525e rock unsorted
                                      'tag_artist'  The Dude
                                     'tag_release'  Specially for You
                                       'tag_title'  Sunday 3am
                                             'bpm'  95.754
                                    'search_title'  '3am':2 'sunday':1
                                   'search_artist'  'dude':2 'the':1
                                  'search_release'  'for':2 'specially':1 'you':3
                                     'search_rest'  '00poprockelectronic':1 'advance':2,4 'cifs525e':3,5 'rock':6 'unsorted':7
                                    'search_combo'  '00poprockelectronic':8 '3am':2A 'advance':9,11 'cifs525e':10,12 'dude':4B 'for':6C 'rock':13 'specially':5C 'sunday':1A 'the':3B 'unsorted':14 'you':7C
                                    'tag_tracknum'  11
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-3', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-2', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['indie', 'alternative', 'indie rock', 'rock', 'french']
                                        'tag_date'  
                                     'discogstags'  ['hard house', 'hardstyle', 'electronic']

============================== file details ==============================
                                           'mtime'  1621629408.117771  (2021-05-21 22:36:48)
                             'size'  8205719