The late Manfred Weihermüller was legal adviser for the "Gesellschaft für Mathematik und Datenverarbeitung". He operated his own record label, "Discophilia", specializing on operatic and personality reissues; drawing on his vast collection of shellac discs. After his premature death in 1995 his work is carried on by Axel Weggen , a musician who teaches music at the Jitzchak Rabin-Schule, Düsseldorf. He is also active as a choir director and piano accompanist for Lieder recitals. He owns an important collection of operatic and vocal recordings.