Noted baroque and historical performance scholar Ton Koopman plays battle music, a genre mainly practiced on the Iberian Peninsula, though there are other examples throughout Europe. Full of musical effects and frequently using the chamade reeds found on Iberian organs, rhythm, not melody or counterpoint, is emphasized in batalhas. Koopman also plays several pieces of a less bellicose style, demonstrating the gentle flue stops. In 1985, Patrick Collon built the organ used on this recording in the Church of Saint-Lambert in Woluwé-Saint-Lambert, Belgium in the Spanish style. Not a strict copy, it has some Flemish influence, which began to be shown in Spanish organs of the 16th century. In addition to the expected chamade reeds, the instrument has a divided keyboard, and the bottom octave of the manual can be converted to a short octave. BRAGA: Batalha de 6° Tom BRUNA: Tiento sobre la letania de la Virgen CARREIRA: Canção a quarto glosada ANONIMO: Tiento lleno 2° tono; Batalha Famoza; Ligadura de 3° tono-para la Elevación CABANILLES: Corrente Italiana COELHO: No. 1 of 4 Susanas, or Tentos upon Suzanne un jour CASTELLANA: Obra de 8° Tom de dous tiples SEIXAS: Sonata Dó major ARAUXO: Todo el mundo en general ARAÚJO: Consonâncias de 1° Tom, Batalha famosa COUTINHO: Obra de 1° Tom