15 Photos - Nov 11, 2015
Photo: Mark Smart, Scott Schwartz, Jim Beauchamp, and me in front of the original Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign.Photo: Mark Smart, Jim Beauchamp, and Scott Schwartz stand in front of the recreated Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign.Photo: Scott Schwartz, Mark Smart, and Jim Beauchamp with the original Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign.Photo: Jim Beauchamp discusses the original Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign.Photo: The original Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign.Photo: The main section of the Harmonic tone generator contains a voltage controlled oscillator with the first 6 harmonic sine waves individually amplitude controlled. Note the support for global FM as well as individual harmonic AM. This is a beautiful set of controls to address pitch and harmonic content, and creates a rich and unique sound. This debuted at the same AES show where Moog debuted his paper about the Moog Modular Synthesizer. Jim mentioned in his talk about how Bob Moog was impressed by the extensive timbre control, which ultimately inspired the Moog Transistor Ladder Filter design the year later.Photo: Time Envelope Network: This section of the Harmonic Tone Generator contains the 6 envelopes which can be patched to control the 6 harmonics of the oscillator section. It features AD or AR, inversion, and controls for the time and level of each envelope. On the left is the keyboard interface with pitch CV output at the top.Photo: The Time Delay Network offers routing and timing control which accepts gate type signals from the keyboard or external sources, and feeds the Time Envelope Network above it. Together these are equivalent of a Delay-Attack-Decay or Delay-Attack-Sustain-Release envelope. What a beautiful sound when different harmonics are delayed to create a arpeggio like flourish on each note.Photo: The original Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign.Photo: Mark Smart discussing the recreated Harmonic Tone Generator. This hands-on exhibit allows visitors to explore the harmonic tone generator, turn knobs and play the keyboard. Under the hood, a faithful approximation of the original runs on Reaktor with dozens of knobs and LEDs operating over USB MIDI.Photo: Thank you Jim for a wonderful historical overview of this exciting time in electronic music.Photo: Mark Smart's recreation of the Harmonic Tone Generator operates as a Reaktor patch with a custom USB MIDI knob interface which mimics the original hardware.Photo: The SalMar Construction is displayed next to the Harmonic Tone Generator at the Sousa Archives - University of Illinois at Urbana Champaign. What an exciting time in electronic music, with such cross disciplinary collaboration on these instruments and music.Photo: This wonderful handmade shirt was worn by composer Harry Partch. The detail and embroidery are fantastic, not to mention the color, which surprised me because I have only seen it in black and white photos. See more info here: http://archives.library.illinois.edu/archon/?p=digitallibrary/digitalcontent&id=7874Photo: This beautiful 5 octave marimba is fully restored and is a joy to play at the Sousa Archives - University of Illinois at Urbana Champaign.