Clairons/Clarions breaking back in Nuts and bolts Posted August 15, 2017 Wow, what a fascinating post, Bruce! You kept my attention. I never realized 4' Clarions might break back and will have to keep an eye (or an ear) out for this. I always assumed reed ranks transitioned to flue pipes. Possibly the "Clairon-Doublette 2'" at St. Sernin cemented in my head the idea that high pitched reeds transition to flues, as night follows day.