Amos Elkana — composer and guitarist

Opus Focus

Year: 2018    op.50
Duration: 15 minutes
Publisher: Donemus
score

Instrumentation

percussion [vibraphone, 2 bongos, 3 toms, bass drum, woodblocks, xylophone] and electronics

Audio

Performed by: Oded Geizhals (2020)
Spotify   

Video

Program Note

Opus Focus unfolds in three interconnected movements, performed without pause. Each movement places the spotlight on a different instrument: the first centers on the shimmering resonance of the vibraphone, the second on the rhythmic drive of the drums, and the third on the interplay between xylophone and bowed vibraphone.

A live computer part acts as both partner and provocateur—capturing the performer’s sounds and replaying them at chosen moments, while also processing the audio in real time. These transformations are projected through four speakers placed around the hall, creating an immersive, shifting sonic space. The result is a performance in which every nuance of the player’s execution shapes the evolving soundscape.

Composed for and dedicated to Oded Geizhals, Opus Focus explores the meeting point between precision performance and responsive technology.

Performances

  • 15 May 2025 Oded Geizhals - perc. Amos Elkana - electronics Building 1005, The Marcus & Ann Rosenberd music building
  • 15 May 2018 Oded Geizhals - Percussion Haifa University