Listen to Mozart: Cassation in B flat, K.99 - 6. Menuet online. Mozart: Cassation in B flat, K.99 - 6. Menuet is an English language song and is sung by Sir Neville Marriner and Academy Of St. Martin In The Fields. Mozart: Cassation in B flat, K.99 - 6. Menuet, from the album Mozart For The Brain, was released in the year 2014. The duration of the song is 2:09. Download English songs online from JioSaavn.