Chrysalis II


Photo by Cris Forster

Built: 2013–2015, San Francisco, California.
Modified: San Francisco, California.
2020. Remachined and screw assembled Delrin nuts and Lexan shields.
2020. Replaced 32 commercial cherry buttons with machined aluminum buttons.
2021. Machined 16 felt-covered Delrin brake pads.
2023. Machined Delrin left string performance markers.
Dimensions: Total number of strings: 164.
Longest string: 21¼ in.
Shortest string: 8½ in.
Wheel diameter: 39⅜ in.
Wheel width: 6⅝ in
Stand length: 65¼ in.
Stand height: 44¼ in.
Stand width: 13½ in.
Height from floor to top of wheel: 59¾ in.
Materials: Sitka spruce, Honduras rosewood, birch, beech,
maple, ash, Delrin, Lexan, aluminum, brass,
and stainless steel.
Strings: For Psithurism.
Right Side. String 1, music wire #11 — 0.026 in.
Right Side. Strings 2–82, music wire #9 — 0.022 in.
Left Side. Strings 1
–82, music wire #7 — 0.018 in.
Range: For Psithurism.
Right Side. Counterclockwise: from String 1, G3 (1/1) 196.0 cps,
to Strings 44
–41, E5 (5/3) 653.3 cps.
Right Side. Clockwise:
from String 1, G3 (1/1) 196.0 cps,
to
Strings 2–5, A3 (9/8) 220.5 cps.
Left Side. Counterclockwise: from Strings 75–72, D4 (3/2) 294.0 cps,
to Strings 47–44, E5 (5/3) 653.3 cps.
Tuning: Just Intonation.

Psithurism Score, p. 5 [PDF]

To view a journal that includes 250 graphics of how I built this instrument in chronological order, please visit Building New Chrysalis II.

The Chrysalis Foundation