======================== unified (from filesystem) ========================
                                         'bitrate'  '256.0'
                                        'duration'  '502'
                                          'artist'  'Gerard'
                                     'text_people'  ''
                                         'release'  "Zarathustra's Revenge"
                                           'title'  'La conquista della posizione eretta'
                                           'quals'  ("['Q-HAP-3', 'Q-UNU-1', 'Q-JZFKS-1', 'Q-HHRNBTT-1', 'Q-LOCALNESS-2', "
 "'Q-OLDST-2', 'q-syn-2', 'q-bass-3', 'q-busy-3', 'q-grit-2', 'q-play-3', "
 "'q-chart-2', 'q-drums-3', 'q-other-4', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-1']")
                                      'lastfmtags'  "['japanese prog', 'progressive rock', 'japanese', 'rap', 'neo prog']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '9'
                                      'tracktotal'  '12'
                                            'date'  '1997'
                                        'comments'  ''
                                           'genre'  'rock-cppex-progressive;set-pl-progspace'
                                             'bpm'  '136'
                                             'key'  '4A'
                                        'acoustid'  '3223f610-c76f-4081-89cf-1cd7daf4715d'
rest: ''

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

'COMM::eng'                                         '256 Kbits'
'COMM:ID3v1 Comment:XXX'                            '256 Kbits'
'PRIV:AverageLevel:s\x14\x00\x00'                   PRIV(owner='AverageLevel', data=b's\x14\x00\x00')
'PRIV:PeakValue:ÿ\x7f\x00\x00'                      PRIV(owner='PeakValue', data=b'\xff\x7f\x00\x00')
'PRIV:WM/MediaClassPrimaryID:¼}`Ñ#ãâK\x86¡H¤*(D\x1e'  PRIV(owner='WM/MediaClassPrimaryID', data=b'\xbc}`\xd1#\xe3\xe2K\x86\xa1H\xa4*(D\x1e')
'PRIV:WM/MediaClassSecondaryID:\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00'  PRIV(owner='WM/MediaClassSecondaryID', data=b'\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     "Zarathustra's Revenge"
'TBPM' (BPM (beats per minute))                     '136'
'TCMP'                                              '1'
'TCON' (Content type, a.k.a. Genre)                 ['rock-cppex-progressive', 'set-pl-progspace']
'TDOR' (Original release time)                      '1997'
'TDRC' (Recording time)                             '1997'
'TIT2' (Title/songname/content description)         'La conquista della posizione eretta'
'TKEY' (Initial key)                                '4A'
'TMED' (Media type)                                 'CD'
'TPE1' (Lead performer(s)/Soloist(s))               'Gerard'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TPOS' (Part of a set)                              '3/4'
'TPUB' (Publisher)                                  'Mellow Records'
'TRCK' (Track number/Position in set)               '9/12'
'TSO2'                                              'Various Artists'
'TSOP' (Performer sort order)                       'Gerard'
'TXXX:Acoustid Id'                                  '3223f610-c76f-4081-89cf-1cd7daf4715d'
'TXXX:Artists'                                      'Gerard'
'TXXX:CATALOGNUMBER'                                'MMP 328 A/B/C/D'
'TXXX:MusicBrainz Album Artist Id'                  '89ad4ac3-39f7-470e-963a-56509c546377'
'TXXX:MusicBrainz Album Id'                         '06594af9-7b03-4523-9e1b-276d351f7a28'
'TXXX:MusicBrainz Album Release Country'            'IT'
'TXXX:MusicBrainz Album Status'                     'official'
'TXXX:MusicBrainz Album Type'                       'album/compilation'
'TXXX:MusicBrainz Artist Id'                        '5e9a84a3-3922-49ad-8a77-03bd4537fc13'
'TXXX:MusicBrainz Release Group Id'                 '0de2360b-8773-4586-9239-d4f53bb26c1b'
'TXXX:MusicBrainz Release Track Id'                 '9dc9c31d-f75d-3834-8ae9-e4b485e94aa8'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '2'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:SCRIPT'                                       'Latn'
'TXXX:lastfmtags'                                   ['japanese prog', 'progressive rock', 'japanese', 'rap', 'neo prog']
'TXXX:originalyear'                                 '1997'
'TXXX:q-bass'                                       '3'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'TXXX:q-grit'                                       '2'
'TXXX:q-mixbeat'                                    '1'
'TXXX:q-other'                                      '4'
'TXXX:q-piano'                                      '1'
'TXXX:q-play'                                       '3'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+0.45 dB'
'TXXX:replaygain_track_peak'                        '0.516439'
'UFID:http://musicbrainz.org'                       UFID(owner='http://musicbrainz.org', data=b'ffb116e9-cdb7-4b96-a991-348cf65b5a75')

========================== row from database ==========================
                                              'id'  1416259
                                            'path'  /data/Music/Bulk/00popandrock-classicprogpsy/Algebra - Italian Prog Tribute/cd 3/309 - gerard - la conquista della posizione eretta (banco del mutuo).mp3
                                         'working'  None
                                         'bitrate'  256
                                    'duration_sec'  502
                                           'genre'  rock-cppex-progressive;set-pl-progspace
                                        'filesize'  16071517
                                           'mtime'  1620736024
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock classicprogpsy Algebra Italian Prog Tribute cd 3 309 gerard (banco mutuo) rock cppex progressive;set pl progspace
                                      'tag_artist'  Gerard
                                     'tag_release'  Zarathustra's Revenge
                                       'tag_title'  La conquista della posizione eretta
                                             'bpm'  136.0
                                    'search_title'  'conquista':2 'della':3 'eretta':5 'la':1 'posizione':4
                                   'search_artist'  'gerard':1
                                  'search_release'  'revenge':4 's':2 'zarathustra':1 'zarathustras':3
                                     'search_rest'  '3':7 '309':8 'algebra':2 'banco':10,11 'cd':6 'classicprogpsy':1 'cppex':15 'gerard':9 'italian':3 'mutuo':12,13 'pl':20 'prog':4 'progressive':16,18 'progspace':21 'rock':14 'set':17,19 'tribute':5
                                    'search_combo'  '3':17 '309':18 'algebra':12 'banco':20,21 'cd':16 'classicprogpsy':11 'conquista':2A 'cppex':25 'della':3A 'eretta':5A 'gerard':6B,19 'italian':13 'la':1A 'mutuo':22,23 'pl':30 'posizione':4A 'prog':14 'progressive':26,28 'progspace':31 'revenge':10C 'rock':24 's':8C 'set':27,29 'tribute':15 'zarathustra':7C 'zarathustras':9C
                                    'tag_tracknum'  9
                                      'num_images'  0
                                             'key'  4A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-2', 'q-piano-1', 'q-mixbeat-1', 'q-play-3', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-4', 'Q-HAP-3', 'q-bass-3', 'q-grit-2']
                                      'lastfmtags'  ['japanese prog', 'progressive rock', 'japanese', 'rap', 'neo prog']
                                        'tag_date'  1997
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620736023.5644917  (2021-05-11 14:27:03)
                             'size'  16071517