======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '131'
                                          'artist'  "Francesco De Masi - (F. 'Napoli Spara!')"
                                     'text_people'  ''
                                         'release'  'Italia A Mano Armata (Compilation)'
                                           'title'  "Organised Crime ('77)"
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-2', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '1975'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '121.6'
                                             'key'  '6A'
                                        'acoustid'  ''
rest: ''

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

'PRIV:AverageLevel:Ê\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'\xca\r\x00\x00')
'PRIV:PeakValue:ýu\x00\x00'                         PRIV(owner='PeakValue', data=b'\xfdu\x00\x00')
'TALB' (Album/Movie/Show title)                     'Italia A Mano Armata (Compilation)'
'TBPM' (BPM (beats per minute))                     '121.6'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '1975'
'TENC' (Encoded by)                                 'Tag&Rename 3.0.6'
'TIT2' (Title/songname/content description)         "Organised Crime ('77)"
'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               "Francesco De Masi - (F. 'Napoli Spara!')"
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'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'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '-0.78 dB'
'TXXX:replaygain_track_peak'                        '0.921806'

========================== row from database ==========================
                                              'id'  1534291
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Francesco De Masi - (F. _Napoli Spara!_) - Organised Crime (_77).mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  131
                                           'genre'  funk or soul
                                        'filesize'  3167156
                                           'mtime'  1628357825
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s _Napoli Spara!_) (_77) funk or soul
                                      'tag_artist'  Francesco De Masi - (F. 'Napoli Spara!')
                                     'tag_release'  Italia A Mano Armata (Compilation)
                                       'tag_title'  Organised Crime ('77)
                                             'bpm'  121.6
                                    'search_title'  '77':3,4 'crime':2 'organised':1
                                   'search_artist'  'de':2 'f':4,5 'francesco':1 'masi':3 'napoli':6,7 'spara':8,9
                                  'search_release'  'a':2 'armata':4 'compilation':5,6 'italia':1 'mano':3
                                     'search_rest'  '70':6 '77':11,12 'easy':4 'funk':2 'instr':5 'napoli':8 'or':13 's':7 'soul':3 'spara':9,10 'swing':1
                                    'search_combo'  '70':25 '77':3A,4A,30,31 'a':15C 'armata':17C 'compilation':18C,19C 'crime':2A 'de':6B 'easy':23 'f':8B,9B 'francesco':5B 'funk':21 'instr':24 'italia':14C 'mano':16C 'masi':7B 'napoli':10B,11B,27 'or':32 'organised':1A 's':26 'soul':22 'spara':12B,13B,28,29 'swing':20
                                    'tag_tracknum'  13
                                      'num_images'  0
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-3', 'Q-OLDST-2', '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'  []
                                        'tag_date'  1975
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628357824.9439445  (2021-08-07 19:37:04)
                             'size'  3167156