======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '207'
                                          'artist'  'Albert Verrecchia'
                                     'text_people'  ''
                                         'release'  'Roma Drogata, la polizia non può intervenire'
                                           'title'  'seq.13'
                                           'quals'  ("['Q-HAP-3', 'Q-JZFKS-3', '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-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', "
 "'q-mixbeat-2']")
                                      'lastfmtags'  "['psychotronic']"
                                     'discogstags'  "['stage & screen']"
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '13'
                                      'tracktotal'  ''
                                            'date'  '2007'
                                        'comments'  ''
                                           'genre'  'funk or soul'
                                             'bpm'  '95.4'
                                             'key'  '9A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
'MCDI' (Music CD identifier)                        MCDI(data=b'1\x003\x00+\x009\x006\x00+\x005\x002\x004\x00A\x00+\x006\x006\x002\x00E\x00+\x007\x00E\x00D\x00A\x00+\x00A\x00E\x007\x005\x00+\x00C\x009\x007\x000\x00+\x001\x001\x007\x003\x004\x00+\x001\x009\x009\x006\x006\x00+\x001\x00B\x00C\x001\x00C\x00+\x002\x005\x00E\x006\x002\x00+\x002\x007\x000\x00B\x00A\x00+\x002\x00A\x005\x00F\x004\x00+\x002\x00C\x001\x004\x006\x00+\x002\x00F\x00E\x004\x00D\x00+\x003\x005\x009\x009\x005\x00+\x003\x006\x003\x000\x00C\x00+\x003\x007\x006\x001\x008\x00+\x003\x009\x00C\x00D\x007\x00+\x003\x00D\x00D\x001\x000\x00+\x004\x002\x00A\x009\x001\x00\x00\x00')
'PRIV:AverageLevel:{\r\x00\x00'                     PRIV(owner='AverageLevel', data=b'{\r\x00\x00')
'PRIV:PeakValue:¡]\x00\x00'                         PRIV(owner='PeakValue', data=b'\xa1]\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')
'PRIV:WM/UniqueFileIdentifier:;\x00\x00\x00'        PRIV(owner='WM/UniqueFileIdentifier', data=b';\x00\x00\x00')
'TALB' (Album/Movie/Show title)                     'Roma Drogata, la polizia non può intervenire'
'TBPM' (BPM (beats per minute))                     '95.4'
'TCON' (Content type, a.k.a. Genre)                 'funk or soul'
'TDRC' (Recording time)                             '2007'
'TIT2' (Title/songname/content description)         'seq.13'
'TKEY' (Initial key)                                '9A'
'TLEN' (Length)                                     '208306'
'TPE1' (Lead performer(s)/Soloist(s))               'Albert Verrecchia'
'TPE2' (Band/orchestra/accompaniment)               'Albert Verrecchia'
'TRCK' (Track number/Position in set)               '13'
'TXXX:Q-HAP'                                        '3'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '3'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:discogstags'                                  'stage & screen'
'TXXX:lastfmtags'                                   'psychotronic'
'TXXX:q-bass'                                       '4'
'TXXX:q-busy'                                       '3'
'TXXX:q-chart'                                      '2'
'TXXX:q-drums'                                      '3'
'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'                        '+1.61 dB'
'TXXX:replaygain_track_peak'                        '0.726294'

========================== row from database ==========================
                                              'id'  1531055
                                            'path'  /data/Music/Bulk/00popandrock-swing-funk-soul/EASY Instr 70_s/Albert Verrecchia - (F. _Roma Drogata, la polizia non può intervenire_) - seq.13.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  207
                                           'genre'  funk or soul
                                        'filesize'  5092572
                                           'mtime'  1628357788
                                   'redo_metaread'  0
                                        'rest_str'   00popandrock swing funk soul EASY Instr 70_s (F. _Roma intervenire_) funk or soul
                                      'tag_artist'  Albert Verrecchia
                                     'tag_release'  Roma Drogata, la polizia non può intervenire
                                       'tag_title'  seq.13
                                             'bpm'  95.4
                                    'search_title'  '13':2 'seq':1 'seq13':3
                                   'search_artist'  'albert':1 'verrecchia':2
                                  'search_release'  'drogata':2,3 'intervenire':9 'la':4 'non':6 'polizia':5 'puo':7,8 'roma':1
                                     'search_rest'  '70':6 'easy':4 'f':8,9 'funk':2 'instr':5 'intervenire':11,12 'or':13 'roma':10 's':7 'soul':3 'swing':1
                                    'search_combo'  '13':2A '70':20 'albert':4B 'drogata':7C,8C 'easy':18 'f':22,23 'funk':16 'instr':19 'intervenire':14C,25,26 'la':9C 'non':11C 'or':27 'polizia':10C 'puo':12C,13C 'roma':6C,24 's':21 'seq':1A 'seq13':3A 'soul':17 'swing':15 'verrecchia':5B
                                    'tag_tracknum'  13
                                      'num_images'  1
                                             'key'  9A
                                           '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-3', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'Q-HAP-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['psychotronic']
                                        'tag_date'  2007
                                     'discogstags'  ['stage & screen']

============================== file details ==============================
                                           'mtime'  1628357788.0990322  (2021-08-07 19:36:28)
                             'size'  5092572