======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '138'
                                          'artist'  'Josef Schwarz'
                                     'text_people'  ''
                                         'release'  'Edison 15714'
                                           'title'  "Alla Vita Che T' Arride (Verdi - Ballo In Maschera)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-LOCALNESS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-2', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-2', 'q-other-2', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1907'
                                        'comments'  ''
                                           'genre'  'prerock-unsorted'
                                             'bpm'  '142.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'COMM:MusicMatch_Bio:eng'                           'Sound edited by Breda4@hotmail.com'
'TALB' (Album/Movie/Show title)                     'Edison 15714'
'TBPM' (BPM (beats per minute))                     '142.6'
'TCON' (Content type, a.k.a. Genre)                 'prerock-unsorted'
'TDRC' (Recording time)                             '1907'
'TIT2' (Title/songname/content description)         "Alla Vita Che T' Arride (Verdi - Ballo In Maschera)"
'TKEY' (Initial key)                                '6A'
'TLEN' (Length)                                     '138000'
'TPE1' (Lead performer(s)/Soloist(s))               'Josef Schwarz'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '1'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '2'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '2'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '2'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+2.08 dB'
'TXXX:replaygain_track_peak'                        '0.769486'

========================== row from database ==========================
                                              'id'  1506283
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1907/Josef Schwarz - Alla Vita Che t_ Arride (Verdi - Ballo In Maschera) 1907.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  138
                                           'genre'  prerock-unsorted
                                        'filesize'  2836000
                                           'mtime'  1621697687
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1907 t_ 1907 prerock unsorted
                                      'tag_artist'  Josef Schwarz
                                     'tag_release'  Edison 15714
                                       'tag_title'  Alla Vita Che T' Arride (Verdi - Ballo In Maschera)
                                             'bpm'  142.6
                                    'search_title'  'alla':1 'arride':6 'ballo':9 'che':3 'in':10 'maschera':11,12 't':4,5 'verdi':7,8 'vita':2
                                   'search_artist'  'josef':1 'schwarz':2
                                  'search_release'  '15714':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1907':6 'country':4 'exotica':2 'jazz':1 'oldies':3 'prerock':8 't':7 'unsorted':9
                                    'search_combo'  '00oldiepop':21 '15714':16C '1907':22 'alla':1A 'arride':6A 'ballo':9A 'che':3A 'country':20 'edison':15C 'exotica':18 'in':10A 'jazz':17 'josef':13B 'maschera':11A,12A 'oldies':19 'prerock':24 'schwarz':14B 't':4A,5A,23 'unsorted':25 'verdi':7A,8A 'vita':2A
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-4', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-1', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-2', 'q-drums-2', 'q-syn-1', 'q-chart-1', 'q-other-2', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  []
                                        'tag_date'  1907
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621697687.4648721  (2021-05-22 17:34:47)
                             'size'  2836000