Of the three instruments built, only the last one, made by Theremin in 1978 for Lydia Kavina, survives today. The instrument was named after the Greek muse of dance, Terpsichore (from the Greek words τέρπω, "delight", and χoρός, "dance").
Only one of the three musical instruments created by Theremin in 1978 for Lydia Kavina has survived to this day. The instrument was named after the Greek muse of dance, Terpsichore, derived from the words τέρπω (delight) and χoρός (dance), reflecting its connection to movement.