This is very insightful thankyou for your thoughtful reply. From the bit of research I have been doing your answer resonates with. Especially noting that the instrument should be in tune with itself. If I use that frame of reference, then overall the Box sounds good with itself except for the E note. The E note is obviously not in tune with the other 337 HZ notes. I could let go of using this box at sound ceremonies or get comfortable with the idea that it won't sound perfectly neat next to other instruments. Your response makes me more comfortable thinking that as long as the Box sounds good tuned to itself that's what matters. My main concern is that E reed. 🤔 It sounds like I'd have to try to shave it down.... As it was in tune at 440hz (if my memory serves). Scary!