======================== unified (from filesystem) ========================
                                         'bitrate'  '192.0'
                                        'duration'  '510'
                                          'artist'  'Ikue Mori, John Zorn, Lindsay Cooper and Fred Frith'
                                     'text_people'  ''
                                         'release'  'Tellus #15: The Improvisors'
                                           'title'  ('Performance at the Stephanie and Irving Stone Festival of Improvisors, '
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                             'musicbrainz_albumid'  ''
                       'musicbrainz_albumartistid'  ''
                            'musicbrainz_artistid'  ''
                             'musicbrainz_trackid'  ''
                                     'tracknumber'  '08'
                                      'tracktotal'  ''
                                            'date'  '1986'
                                        'comments'  ''
                                           'genre'  'experimental-oddness'
                                             'bpm'  '134.6'
                                             'key'  '1A'
                                        'acoustid'  ''
rest: ''

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

'APIC:'                                             type PictureType.COVER_FRONT (Cover (front)) b''
                                     
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'TCON' (Content type, a.k.a. Genre)                 'experimental-oddness'
'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         ('Performance at the Stephanie and Irving Stone Festival of Improvisors, '
 'November 1985')
'TKEY' (Initial key)                                '1A'
'TPE1' (Lead performer(s)/Soloist(s))               'Ikue Mori, John Zorn, Lindsay Cooper and Fred Frith'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '08'
'TXXX:Q-BUSY'                                       '3'
'TXXX:Q-CHART'                                      '2'
'TXXX:Q-GRIT'                                       '2'
'TXXX:Q-HAP'                                        '2'
'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-PLAY'                                       '3'
'TXXX:Q-SYN'                                        '3'
'TXXX:Q-UNU'                                        '1'
'TXXX:q-bass'                                       '1'
'TXXX:q-drums'                                      '4'
'TXXX:q-other'                                      '3'
'TXXX:q-piano'                                      '1'
'TXXX:q-vocals'                                     '2'
'TXXX:replaygain_track_gain'                        '+0.75 dB'
'TXXX:replaygain_track_peak'                        '0.495871'

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                                           'genre'  experimental-oddness
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                                           'mtime'  1622638146
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                                        'rest_str'   00exnnpjpsprgttidm Audio Cassette Magazine 1986 08 experimental oddness
                                      'tag_artist'  Ikue Mori, John Zorn, Lindsay Cooper and Fred Frith
                                     'tag_release'  Tellus #15: The Improvisors
                                       'tag_title'  Performance at the Stephanie and Irving Stone Festival of Improvisors, November 1985
                                             'bpm'  134.6
                                    'search_title'  '1985':13 'and':5 'at':2 'festival':8 'improvisors':10,11 'irving':6 'november':12 'of':9 'performance':1 'stephanie':4 'stone':7 'the':3
                                   'search_artist'  'and':9 'cooper':8 'fred':10 'frith':11 'ikue':1 'john':4 'lindsay':7 'mori':2,3 'zorn':5,6
                                  'search_release'  '15':2,3 'improvisors':5 'tellus':1 'the':4
                                     'search_rest'  '1986':4 'audio':1 'cassette':2 'experimental':5 'magazine':3 'oddness':6
                                    'search_combo'  '15':26C,27C '1985':13A '1986':33 'and':5A,22B 'at':2A 'audio':30 'cassette':31 'cooper':21B 'experimental':34 'festival':8A 'fred':23B 'frith':24B 'ikue':14B 'improvisors':10A,11A,29C 'irving':6A 'john':17B 'lindsay':20B 'magazine':32 'mori':15B,16B 'november':12A 'oddness':35 'of':9A 'performance':1A 'stephanie':4A 'stone':7A 'tellus':25C 'the':3A,28C 'zorn':18B,19B
                                    'tag_tracknum'  8
                                      'num_images'  1
                                             'key'  1A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-2', 'Q-LOCALNESS-1', 'q-piano-1', 'Q-OLDST-3', 'Q-GRIT-2', 'Q-CHART-2', 'Q-JZFKS-1', 'Q-UNU-1', 'q-drums-4', 'Q-SYN-3', 'q-other-3', 'Q-BUSY-3', 'Q-HAP-2', 'Q-PLAY-3', 'q-bass-1']
                                      'lastfmtags'  []
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1622638146.0065794  (2021-06-02 14:49:06)
                             'size'  12293572