James Tenney was a prolific and important experimental composer, theorist, writer and performer. His books include Meta + Hodos: A Phenomenology of Twentieth-Century Musical Materials and an Approach to the Study of Form and A History of "Consonance" and "Dissonance" . He died in 2006. Larry Polansky is Professor of Music at the University of California Santa Cruz, Emeritus Strauss Professor of Music at Dartmouth College, and founding editor of the Leonardo Music Journal . Lauren Pratt is the associate producer of music at Roy and Edna Disney/CalArts Theater and executor of the Tenney estate. Robert Wannamaker is Associate Dean at the California Institute of the Arts, where he teaches music composition, theory, history, and literature. Michael Winter is a composer and founder and director of the wulf. in Los Angeles and helped complete Tenney's final musical work, Arbor Vitae .