Victor Fenigstein was born in Zürich in 1924. He started to play the violin with his uncle and then continued music at the Zürich Conservatory, where he studied piano playing with Bernhard Rywosch and Emil Frey. In 1945, he obtained the State Diploma for piano teachers and became a member of the Swiss Society for Music Pedagogy in 1946. Between 1945 and 1947, he took piano lessons under Edwin Fischer. From 1946 to 1948 he taught chamber music at the "Klubschule Migros" in Zürich. He was appointed a piano teacher at the Luxembourg City Conservatory in 1948. He had to abandon his career as a piano player for health reasons in 1952 but he continued to give lessons until his retirement in 1985.
As a composer, Victor Fenigstein is an autodidact. He considers all styles and techniques from the past and present as a legacy to be used depending on each individual purpose and tries to employ them in his own way as a witness to his own age. His compositions were published by Eulenburg from 1971, these subsequently becoming Kunzelmann editions. His "singspiel" St. Joan of the Stockyards, after the work by Bertold Brecht, was published by Suhrkamp from 1994. All the works by Fenigstein are deposited at the National Library in Luxembourg.