Published in print:20 January 2001, Published online:2001; updated and revised, 1 July 2014
(b Helsinki, Jan 13, 1938). Finnish composer. After taking private lessons in composition from Meriläinen he studied at the Sibelius Academy, Helsinki (1956–60), with Aarre Merikanto, Rautavaara, Englund and Kokkonen, at the Staatliche Hochschule für Musik, Cologne (1960–61), with B.A. Zimmermann and Rudolf Petzold, and at the Juilliard School (1961–2) with Persichetti and Steuermann. Heininen taught music theory at the Turku Music School (1963–6) and from 1966 theory and composition at the Sibelius Academy, where he succeeded Rautavaara as professor of composition in 1993.