======================== unified (from filesystem) ========================
                                         'bitrate'  '160.0'
                                        'duration'  '220'
                                          'artist'  'John McCormack'
                                     'text_people'  ''
                                         'release'  '[non-album tracks]'
                                           'title'  "Lunge Da Lei Per Me Non V'ha Diletto"
                                           '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']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  ''
                                      'tracktotal'  ''
                                            'date'  '1910'
                                        'comments'  ''
                                           'genre'  'prerock-vocal-folk'
                                             'bpm'  '140.921'
                                             'key'  '4A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     '[non-album tracks]'
'TBPM' (BPM (beats per minute))                     '140.921'
'TCON' (Content type, a.k.a. Genre)                 'prerock-vocal-folk'
'TDRC' (Recording time)                             '1910'
'TIT2' (Title/songname/content description)         "Lunge Da Lei Per Me Non V'ha Diletto"
'TKEY' (Initial key)                                '4A'
'TPE1' (Lead performer(s)/Soloist(s))               'John McCormack'
'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'                                       '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'                        '+2.85 dB'
'TXXX:replaygain_track_peak'                        '0.421475'

========================== row from database ==========================
                                              'id'  1428948
                                            'path'  /data/Music/Bulk/00blues-jazz-exotica-oldies-country/00oldiepop/1910/John McCormack - Lunge Da Lei Per Me 10-3-1910.mp3
                                         'working'  None
                                         'bitrate'  160
                                    'duration_sec'  220
                                           'genre'  prerock-vocal-folk
                                        'filesize'  4409138
                                           'mtime'  1621625631
                                   'redo_metaread'  0
                                        'rest_str'   00blues jazz exotica oldies country 00oldiepop 1910 10 3 1910 prerock vocal folk
                                      'tag_artist'  John McCormack
                                     'tag_release'  [non-album tracks]
                                       'tag_title'  Lunge Da Lei Per Me Non V'ha Diletto
                                             'bpm'  140.921
                                    'search_title'  'da':2 'diletto':10 'ha':8 'lei':3 'lunge':1 'me':5 'non':6 'per':4 'v':7 'vha':9
                                   'search_artist'  'cormack':4 'john':1 'mc':3 'mccormack':2
                                  'search_release'  'album':2 'non':1 'nonalbum':3 'tracks':4,5
                                     'search_rest'  '00oldiepop':5 '1910':6 '3':7 'country':4 'exotica':2 'folk':10 'jazz':1 'oldies':3 'prerock':8 'vocal':9
                                    'search_combo'  '00oldiepop':24 '1910':25 '3':26 'album':16C 'cormack':14B 'country':23 'da':2A 'diletto':10A 'exotica':21 'folk':29 'ha':8A 'jazz':20 'john':11B 'lei':3A 'lunge':1A 'mc':13B 'mccormack':12B 'me':5A 'non':6A,15C 'nonalbum':17C 'oldies':22 'per':4A 'prerock':27 'tracks':18C,19C 'v':7A 'vha':9A 'vocal':28
                                    'tag_tracknum'  None
                                      'num_images'  0
                                             'key'  4A
                                           '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-chart-1', 'q-drums-1', 'q-vocals-4', 'q-other-1', 'q-busy-3', 'q-mixbeat-1', 'q-syn-1', 'q-play-2', 'q-piano-1', 'q-bass-1', 'q-grit-1']
                                        'tag_date'  1910
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1621625631.3883548  (2021-05-21 21:33:51)
                             'size'  4409138