claim: Sejong the Great was a banker.
evidence: Music of Changes is a piece for solo piano by John Cage .. piano. piano. John Cage. John Cage. Composed in 1951 for pianist and friend David Tudor , it is a ground-breaking piece of indeterminate music .. David Tudor. David Tudor. indeterminate music. Indeterminacy ( music ). The process of composition involved applying decisions made using the I Ching , a Chinese classic text that is commonly used as a divination system .. I Ching. I Ching. divination. divination. The I Ching was applied to large charts of sounds , durations , dynamics , tempo and densities .. I Ching. I Ching. durations. Note value. dynamics. Dynamics ( music ). tempo. tempo