Vanadium is the 23rd element. There is a bit more information on the blog post: Tones of Vanadium.

AngstromsNanometersColorHertzNoteHertz
3703.574370Ultraviolet368.1F#4369.994
3855.845386Violet353.57
3902.256390Violet349.36F4349.228
4111.78411Violet331.56
4115.18412Violet331.29
4131.989413Violet329.94E4329.628
4379.23438Violet311.31D#4311.12
4384.71438Violet310.92
4389.98439Violet310.55
4395.223439.5Violet310.18
4408.195441Violet309.26
4408.501441Violet309.24
6090.21609Orange223.85A3220

Orange

Violet

 

 

 

Ultraviolet

Vanadium Scale


Vanadium Sound Sketch