======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '250'
                                          'artist'  'Alessandro Bonci'
                                     'text_people'  ''
                                         'release'  'Edison Blue Amberol 29001'
                                           'title'  'Questa O Quella & La Donna E Mobile (Verdi - Rigoletto)'
                                           'quals'  ("['Q-HAP-3', 'Q-LOCALNESS-1', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-1', 'q-syn-1', 'q-bass-1', 'q-busy-3', 'q-grit-1', 'q-play-2', "
 "'q-chart-1', 'q-drums-1', 'q-other-1', 'q-piano-1', 'q-vocals-4', "
 "'q-mixbeat-1']")
                                     'discogstags'  "['classical']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1913'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-italian'
                                             'bpm'  '145.2'
                                             'key'  '11A'
                                        '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 Blue Amberol 29001'
'TBPM' (BPM (beats per minute))                     '145.2'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-italian'
'TDRC' (Recording time)                             '1913'
'TIT2' (Title/songname/content description)         'Questa O Quella & La Donna E Mobile (Verdi - Rigoletto)'
'TKEY' (Initial key)                                '11A'
'TLEN' (Length)                                     '250000'
'TPE1' (Lead performer(s)/Soloist(s))               'Alessandro Bonci'
'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:discogstags'                                  'classical'
'TXXX:q-bass'                                       '1'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '1'
'TXXX:q-drums'                                      '1'
'TXXX:q-grit'                                       '1'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '1'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '2'
'TXXX:q-syn'                                        '1'
'TXXX:q-vocals'                                     '4'
'TXXX:replaygain_track_gain'                        '+1.54 dB'
'TXXX:replaygain_track_peak'                        '0.468616'

========================== row from database ==========================
                                              'id'  1461485
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1913/Alessandro Bonci - Questa O Quella & La Donna E Mobile (Verdi - Rigoletto) 1913.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  250
                                           'genre'  prerock-vocal-italian
                                        'filesize'  5062764
                                           'mtime'  1621625645
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1913 1913 prerock vocal italian
                                      'tag_artist'  Alessandro Bonci
                                     'tag_release'  Edison Blue Amberol 29001
                                       'tag_title'  Questa O Quella & La Donna E Mobile (Verdi - Rigoletto)
                                             'bpm'  145.2
                                    'search_title'  'donna':5 'e':6 'la':4 'mobile':7 'o':2 'quella':3 'questa':1 'rigoletto':10,11 'verdi':8,9
                                   'search_artist'  'alessandro':1 'bonci':2
                                  'search_release'  '29001':4 'amberol':3 'blue':2 'edison':1
                                     'search_rest'  '00oldiepop':5 '1913':6 'country':4 'exotica':2 'italian':9 'jazz':1 'oldies':3 'prerock':7 'vocal':8
                                    'search_combo'  '00oldiepop':22 '1913':23 '29001':17C 'alessandro':12B 'amberol':16C 'blue':15C 'bonci':13B 'country':21 'donna':5A 'e':6A 'edison':14C 'exotica':19 'italian':26 'jazz':18 'la':4A 'mobile':7A 'o':2A 'oldies':20 'prerock':24 'quella':3A 'questa':1A 'rigoletto':10A,11A 'verdi':8A,9A 'vocal':25
                                    'tag_tracknum'  None
                                      'num_images'  1
                                             'key'  11A
                                           '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-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'Q-HAP-3', 'q-bass-1', 'q-grit-1']
                                      'lastfmtags'  ['q-vocals-4', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'q-busy-3', 'q-drums-1', 'q-syn-1', 'q-chart-1', 'q-other-1', 'q-bass-1', 'q-grit-1']
                                        'tag_date'  1913
                                     'discogstags'  ['classical']

============================== file details ==============================
                                           'mtime'  1621625645.4141693  (2021-05-21 21:34:05)
                             'size'  5062764