I'm pretty sure the answer to your question is a contract
Central to the Nullification crisis during Jackson’s presidency, was the notion that "<span>c. States could nullify, and therefore not obey, any duly passed national law that they deemed objectionable or unconstitutional"</span>
Answer:
He is known for his operas, which include Der Rosenkavalier and Salome; his lieder, especially his Four Last Songs; and his tone poems Death and Transfiguration, Till Eulenspiegel's Merry Pranks, Also sprach Zarathustra, An Alpine Symphony, and other orchestral works, such as Metamorphosen. He was a German composer, conductor, pianist, and violinist. Considered a leading composer of the late Romantic and early modern eras, he has been described as a successor of Richard Wagner and Franz Liszt.