======================== unified (from filesystem) ========================
                                         'bitrate'  '112.0'
                                        'duration'  '514'
                                          'artist'  'Mastermind'
                                     'text_people'  'Gerson Lage'
                                         'release'  ''
                                           'title'  'Spring is in the air'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-OLDST-3', 'Q-HHRNBTT-2', 'Q-UNU-1', "
 "'Q-LOCALNESS-1', 'q-syn-2', 'q-bass-2', 'q-busy-3', 'q-grit-2', 'q-play-2', "
 "'q-chart-2', 'q-drums-4', 'q-other-2', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  ("['power metal', 'japanese', 'progressive metal', 'drum and bass', "
 "'progressive rock', 'funk']")
                                     'discogstags'  "['electronic', 'drum n bass']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  ''
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '140.141'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'TBPM' (BPM (beats per minute))                     '140.141'
'TCOM' (Composer)                                   'Gerson Lage'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TIT2' (Title/songname/content description)         'Spring is in the air'
'TKEY' (Initial key)                                '9A'
'TPE1' (Lead performer(s)/Soloist(s))               'Mastermind'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '2'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  ['electronic', 'drum n bass']
'TXXX:lastfmtags'                                   ['power metal',
 'japanese',
 'progressive metal',
 'drum and bass',
 'progressive rock',
 'funk']
'TXXX:q-bass'                                       '2'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '4'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '2'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-1.03 dB'
'TXXX:replaygain_track_peak'                        '0.538679'
'WXXX:'                                             WXXX(encoding=<Encoding.LATIN1: 0>, desc='', url='http://mastermind.achterdepc.nl')

========================== row from database ==========================
                                              'id'  1356959
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Mastermind - Spring is in the air.mp3
                                         'working'  None
                                         'bitrate'  112
                                    'duration_sec'  514
                                           'genre'  rock-cppex
                                        'filesize'  7209486
                                           'mtime'  1621697732
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] rock cppex
                                      'tag_artist'  Mastermind
                                     'tag_release'  None
                                       'tag_title'  Spring is in the air
                                             'bpm'  140.141
                                    'search_title'  'air':5 'in':3 'is':2 'spring':1 'the':4
                                   'search_artist'  'mastermind':1
                                  'search_release'  
                                     'search_rest'  '00poprockelectronic':1 'cppex':8 'files':5,6 'loose':3,4 'rock':7 'unsorted':2
                                    'search_combo'  '00poprockelectronic':7 'air':5A 'cppex':14 'files':11,12 'in':3A 'is':2A 'loose':9,10 'mastermind':6B 'rock':13 'spring':1A 'the':4A 'unsorted':8
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  9A
                                           'quals'  ['Q-HHRNBTT-2', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', '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-2', 'Q-HAP-3', 'q-bass-2', 'q-grit-2']
                                      'lastfmtags'  ['power metal', 'japanese', 'progressive metal', 'drum and bass', 'progressive rock', 'funk']
                                        'tag_date'  
                                     'discogstags'  ['electronic', 'drum n bass']

============================== file details ==============================
                                           'mtime'  1621697732.0041807  (2021-05-22 17:35:32)
                             'size'  7209486