Pan-American Association of Composers Entered from a copy of the program included in an online exhibit titled "The Pan-American Association of Composers, a digital archive". Note that composer/pianist Paul Arma appears in the printed concert program under his original name, Imre Weisshaus. Both pianists, Stephanie Schehatowitsch and Imre Weisshaus (Paul Arma) are listed among the performers on Ruth Crawford Seeger's "Rat Riddles", which calls for piano and percussion; it is possible one of the pianists played percussion instead. “Concert Program, 21 April 1930.” The Pan-American Association of Composers, Stephanie N. Stallings, 2011, https://panamerican.omeka.net/items/show/4. WORLD PREMIERE of Charles Ives' SET NO.8: SONGS WITHOUT VOICES chamber music performance 1930-04-21T20:30:00