The sound of Poemophone: Cosmos is dark, melancholy and quiet with a prolonged clean resonance.  The keys are sturdy and require hand strength to pluck.  The sounding board is made of rosewood, a dense and heavy hard grained wood.  The feet are carved from teak.  As with each of the Poemophones, the keys are hand forged steel.

The keyboard of Cosmos is constructed using the QWERTY keyboard.  The layout of the keyboard is structured as follows:

The Poemophone keyboard arrangement is modeled after that of a typewriter, with three rows of keys running in parallel tiers horizontally across the sound board.  The key arrangement on Cosmos is made with a single continuous bridge and crossbar.  The bridge inclines from right to left, laying diagonal within the rectangle of the sound board.  This arrangement places higher pitched tones at the right edge and lower pitched tones at the left edge of the keyboard.  Pitch shifts incrementally higher across the keyboard from left to right.

To listen to sound samples please click on the links below.

Hear the alphabet played on Cosmos:


Listen to the word ‘poemophone’ played on Cosmos:


Playing the left keys of the keyboard:

Left keys random play

Playing a cascade from left to right on the keyboard:

Left to Right cascade of keys

Playing the right keys of the keyboard:

Right keys random play

Playing the bottom row of keys from left to right:

Bottom Row

Playing the middle row of keys from left to right:

Middle Row

Playing the top row of keys from left to right:

Top row

Check out how writer M. C. Boyes and her children, Hank and May, composed and performed with Cosmos at the links below:

Things Devolve

the Profanity Sessions at home with the kids

M.C. Boyes performing with Hank & May

A Cacophonous Collaboration & Reading Series

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