Thema (Omaggio a Joyce) is an electroacoustic composition by Luciano Berio, for voice and tape. Composed between 1958 and 1959, it is based on the interpretative reading of the poem "Sirens" from chapter 11 of the novel Ulysses by James Joyce by Cathy Berberian and on the elaboration of her recorded voice by technological means.

Librettist ("Ulysses" (chp. XI))
Date of composition 1958
Premiered 1958 in Napoli, Metropolitan City of Naples, Italy
First published 1995 by Edizioni Suvini Zerboni
Approx. duration 7 minutes
Instruments Magnetic tape
Autotranslations beta Luciano Berio: Thema "Omaggio a Joyce"
Luciano Berio: Thema "Omaggio a Joyce"
Luciano Berio: Thema "Omaggio a Joyce"