Theremin
The sound of the theremin is associated with "alien," surreal, and eerie-sounding portamento, glissando, tremolo, and vibrato sounds. It has been used in film soundtracks such as Spellbound, The Lost Weekend, Ed Wood, Mars Attacks! and The Day the Earth Stood Still. The BBC Radiophonic Workshop used the theramin to provide the electronic sounds in demand in the mid-century. Theremins are also used in art music (especially avant-garde and 20th century "new music") and in popular music genres such as rock and pop. The Russian Dmitri Shostakovich was one of the first to include parts for the theremin in orchestral pieces, including a use in his score for the 1931 film Odna.