Does Clefklaff sound weird to German ears? 😅

Hi r/German!

I’m developing a small app for learning to read sheet music that I will use on my piano students, and I’m considering the name Clefklaff.

There’s a bit of Norwegian wordplay behind it: clef is obviously musical, while in Norwegian “klaff” can mean that something works out or “clicks” — as in “now it finally clicks!” It also means valves/keys on wind instruments.

So to Norwegian ears, Clefklaff sounds playful, musical and slightly silly in a way I quite like.

But then I started doing a little research in other languages if the word "klaff" could have unforseen meanings, and I found that the word klaff could be a euphemism in German. (I have two piano students whose parents are German. I don't dare asking them)😬 And, as often happens when naming things, I have now spent far too much time falling down an etymological rabbit hole.😄

So my question is:

If you saw an app called “Clefklaff”, without any explanation, what would your immediate reaction be?

Does it sound:

• perfectly harmless?
• funny or strange?
• like some existing German word?
• give you associations in the direction of the world of the undergarments
• or just like a Scandinavian app name?

Please don’t spare my feelings! I’d much rather discover now that I’ve accidentally named my music app something ridiculous than after showing it to my students. 😂

Native-speaker gut reactions are very welcome. Thanks!

(Honda was saved by the bell when introducing a new car model in the beginning of the 2000th: the Honda Fitta, quickly changing the name to Honda Jazz after some name research in Scandinavia. Google Fitta at your own risk! NSFW!)