I always end up pronouncing it "C hash".
Anyone else who has this problem?

I usually call it C octothorpe. Oops.

At first, yes

I'm a musician, so no.

Isn't it c-pound?

That would then be C£ @bittersweet

@jtaylor69 £ = money, # = lb.

It's see sharp. Sharp is a character in music that "elevates" a note. C# means it's an elevation of C. Also, it's not #, but a slanted version of it which I don't have on my phone right now and most people use # instead anyway since it's very similar and it's always handy.