======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '946'
                                          'artist'  'Banco Del Mutuo Soccorso'
                                     'text_people'  ''
                                         'release'  'Io sono nato libero'
                                           'title'  'Canto nomade per un prigionero politico'
                                           'quals'  ("['Q-OLDST-2', 'Q-JZFKS-1', 'Q-UNU-1', 'Q-LOCALNESS-1', 'Q-HHRNBTT-1', "
 "'q-syn-2', 'q-bass-4', 'q-busy-3', 'q-grit-2', 'q-play-2', 'q-chart-2', "
 "'q-drums-3', 'q-other-3', 'q-piano-1', 'q-vocals-1', 'q-mixbeat-2']")
                                      'lastfmtags'  ("['italian symphonic prog', 'italian progressive rock', '77davez all tracks', "
 "'progressive rock', 'italian']")
                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '1'
                                      'tracktotal'  ''
                                            'date'  '1973'
                                        'comments'  ''
                                           'genre'  'rock-cppex'
                                             'bpm'  '138.607'
                                             'key'  '8A'
                                        'acoustid'  ''
rest: ''

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

'TALB' (Album/Movie/Show title)                     'Io sono nato libero'
'TBPM' (BPM (beats per minute))                     '138.607'
'TCON' (Content type, a.k.a. Genre)                 'rock-cppex'
'TDRC' (Recording time)                             '1973'
'TIT2' (Title/songname/content description)         'Canto nomade per un prigionero politico'
'TKEY' (Initial key)                                '8A'
'TLEN' (Length)                                     '946233'
'TMED' (Media type)                                 'DIG'
'TPE1' (Lead performer(s)/Soloist(s))               'Banco Del Mutuo Soccorso'
'TRCK' (Track number/Position in set)               '1'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '2'
'TXXX:Q-UNU'                                        '1'
'TXXX:lastfmtags'                                   ['italian symphonic prog',
 'italian progressive rock',
 '77davez all tracks',
 'progressive rock',
 'italian']
'TXXX:original release date'                        ['1995', '1973']
'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'                                       '2'
'TXXX:q-syn'                                        '2'
'TXXX:q-vocals'                                     '1'
'TXXX:replaygain_track_gain'                        '+2.48 dB'
'TXXX:replaygain_track_peak'                        '0.869627'

========================== row from database ==========================
                                              'id'  1343678
                                            'path'  /data/Music/Bulk/00poprockelectronic/Unsorted/[loose files]/Canto nomade per un prigionero politico_Banco Del Mutuo So.mp3
                                         'working'  None
                                         'bitrate'  192
                                    'duration_sec'  946
                                           'genre'  rock-cppex
                                        'filesize'  22712190
                                           'mtime'  1620737413
                                   'redo_metaread'  0
                                        'rest_str'   00poprockelectronic Unsorted [loose files] politico_Banco rock cppex
                                      'tag_artist'  Banco Del Mutuo Soccorso
                                     'tag_release'  Io sono nato libero
                                       'tag_title'  Canto nomade per un prigionero politico
                                             'bpm'  138.607
                                    'search_title'  'canto':1 'nomade':2 'per':3 'politico':6 'prigionero':5 'un':4
                                   'search_artist'  'banco':1 'del':2 'mutuo':3 'soccorso':4
                                  'search_release'  'io':1 'libero':4 'nato':3 'sono':2
                                     'search_rest'  '00poprockelectronic':1 'banco':8 'cppex':10 'files':5,6 'loose':3,4 'politico':7 'rock':9 'unsorted':2
                                    'search_combo'  '00poprockelectronic':15 'banco':7B,22 'canto':1A 'cppex':24 'del':8B 'files':19,20 'io':11C 'libero':14C 'loose':17,18 'mutuo':9B 'nato':13C 'nomade':2A 'per':3A 'politico':6A,21 'prigionero':5A 'rock':23 'soccorso':10B 'sono':12C 'un':4A 'unsorted':16
                                    'tag_tracknum'  1
                                      'num_images'  0
                                             'key'  8A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-2', 'q-play-2', 'Q-OLDST-2', 'Q-UNU-1', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-2', 'q-other-3', 'q-bass-4', 'q-grit-2']
                                      'lastfmtags'  ['italian symphonic prog', 'italian progressive rock', '77davez all tracks', 'progressive rock', 'italian']
                                        'tag_date'  1973
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1620737412.5451393  (2021-05-11 14:50:12)
                             'size'  22712190