Nachklänge for chamber choir a cappella, 1977 - Heppener, Robert 1925-2009 (Donemus, 1982)
Title from HTML title page (viewed Sep. 2, 2014). - Written in 1977. - For mixed choir (SSS, AAT, TBB, SAATTBB) a cappella. - Duration: c. 13 minutes. - Includes performance notes in English