Rhythmic Mosaics

Performed by Jacob Ottmer and Micheal Barnes
Schematic for Technical Setup

Year: 2021 | Duration: 7′ | Chamber Ensemble with Live Electronics

Full score available on Scores page


  • Vibraphone
  • Marimba


Rhythmic Mosaics is a piece for marimba, vibraphone, and live electronics that is inspired by abstract geometric (or pattern based) visual art, where numerous small shapes and patterns are combined and arranged to construct larger forms. The piece borrows from this art form by taking several small motivic figures, while creating patterns from overlapping simple and compound meters to continuously develop musical textures and harmonies. The electronic component accentuates this effect by creating new patterns and timbres derived from each performer’s component parts.

Technical Requirements

  • Two-channel audio interface
  • 2 large diaphragm microphones
  • Loudspeakers (stereo is preferred)
  • Computer Running Max/MSP Patch

A two-channel audio interface is required to perform the piece, and two large diaphragm microphones should be used for inputs. Both microphones should be positioned in between the two instruments, with the left input near the low register of the marimba and the right input near the high register of the marimba. Leave space in between the instruments and microphone stands for bowing. The marimba player controls the electronics using a USB or Bluetooth capable MIDI foot controller (triggers are notated in the score). However, the vibraphone player may instead control the electronics, or a third “performer” may be used to trigger the start of each new section with a MIDI controller.


  • Jacob Ottmer
  • Micheal Barnes