======================== unified (from filesystem) ========================
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                                          'artist'  'David Weinstein and Fred Frith'
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                             'musicbrainz_albumid'  ''
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======================== rawer (from filesystem) ========================

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'TDRC' (Recording time)                             '1986'
'TIT2' (Title/songname/content description)         ('Performance at the Stephanie and Irving Stone Festival of Improvisors, '
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'TKEY' (Initial key)                                '6A'
'TPE1' (Lead performer(s)/Soloist(s))               'David Weinstein and Fred Frith'
'TPE2' (Band/orchestra/accompaniment)               'Various Artists'
'TRCK' (Track number/Position in set)               '07'
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'TXXX:Q-HHRNBTT'                                    '1'
'TXXX:Q-JZFKS'                                      '1'
'TXXX:Q-LOCALNESS'                                  '1'
'TXXX:Q-OLDST'                                      '3'
'TXXX:Q-UNU'                                        '3'
'TXXX:q-bass'                                       '1'
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'TXXX:q-vocals'                                     '1'
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                                       'tag_title'  Performance at the Stephanie and Irving Stone Festival of Improvisors, November 1985
                                             'bpm'  102.6
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                                    'tag_tracknum'  7
                                      'num_images'  1
                                             'key'  6A
                                           'quals'  ['Q-HHRNBTT-1', 'q-vocals-1', 'Q-LOCALNESS-1', 'q-piano-1', 'q-mixbeat-1', 'q-play-2', 'Q-OLDST-3', 'Q-UNU-3', 'Q-JZFKS-1', 'q-busy-3', 'q-drums-3', 'q-syn-2', 'q-chart-1', 'q-other-4', 'Q-HAP-2', 'q-bass-1', 'q-grit-2']
                                      'lastfmtags'  []
                                        'tag_date'  1986
                                     'discogstags'  []

============================== file details ==============================
                                           'mtime'  1628358173.2606387  (2021-08-07 19:42:53)
                             'size'  11784713