Kupkovič was born in Bratislava, and studied violin and conducting there, first at the conservatory, then at the Academy of Performing Arts.
He played violin in the Slovak Philharmonic Orchestra from 1960 to 1965, and then began to write music for television and film to make a living.
In Musik für das Ruhrfestspielhaus (1970), he arranged forty performers to play a number of pieces in a concert hall in Recklinghausen over the course of three hours.
1, and is for violin and magnetic tape; Präparierter Text 2 is adapted from the first movement of Mozart's Jupiter Symphony (No.
41), and is for flute, trumpet, timpani, violin, cello and double bass; Präparierter Text 3 is adapted from the fourth movement of Beethoven's Symphony No.
This technique was used in Morceau de Genre based on a small piece for violin and piano by Edward Elgar.
His short piece for violin and piano from 1968, Souvenir, has been recorded several times, most recently by Gidon Kremer.
[full citation needed] Some recent works are published by Tre Media Musikverlage in Karlsruhe.