What is expressed through もし...たら here


Full context:

> 友達申請をしてくださって、ありがとうございます。
>
> アンドレアスさん、でいいですか？もし呼び方が違っていたら教えてください。  
>  「みんなの日本語」を最後までやり終えたのですね。すばらしいです。
>
> 私は英語の勉強も、もちろんしていますが、日本語を教える勉強も始めたので、力になれたらうれしいです。
>
> 何でも聞いてください。一緒に頑張りましょう。

Sentence in question:

> もし呼び方が違っていたら教えてください。

My attempt at translation:

> "Please think whether the pronunciation is off or not."

I've encountered (もし)...たら constructions in several cases:

1) Where it expresses the prototypical conditional:  
"When I do X, Y will happen (eventually)".  
今食べ過ぎたら、多分眠られません。

2) Where it expresses a thing which hasn't happened in reality:  
"If X had been the case, I wouldn't have done Y"  
喪主昨日雨が降っていたら、買い物には出かけなかっただろう。

3) in certain set phrases like:  
...Vたらいいですか。...Vたらどう?

4) When it expresses that X happened in consequence of Y:  
薬を飲んだら、元気になりました。

However, in the sentence in question, at least as far as I understand it, it
expresses the translated "whether...or..." construction.  
Since 考える is used in part 2, it's pretty difficult to coax a basic "When X,
then Y" interpretation into it. Basically, this is what separates it from all
the other cases I've described above. Whenever I encountered たら, it was
somehow possible to translate it into a very literal if-clause without turning
it into absolute gibberish. This isn't possible here anymore:

> "When the pronunciation is off, please think."

This is also the reason why I'm asking about it here.  
I don't trust my own translation, even though it would make perfect sense in
this context ^^




You should review the basic meaning of the words.

  * 呼ぶ is "to call", not "to pronounce". 呼び方 refers to how to call you.
  * 教えてください is "please tell/teach me", rather than "please think". Are you mixing 考える with 教える?
  * もし～たら is simply "if ～ then".

The letter is asking if it's okay to call you アンドレアスさん (among other options
such as a nickname or a family name).

> もし呼び方が違っていたら教えてください。  
>  Please tell me if my way of calling you is wrong.




You should review the basic meaning of the words.

  * 呼ぶ is "to call", not "to pronounce". 呼び方 refers to how to call you.
  * 教えてください is "please tell/teach me", rather than "please think". Are you mixing 考える with 教える?
  * もし～たら is simply "if ～ then".

The letter is asking if it's okay to call you アンドレアスさん (among other options
such as a nickname or a family name).

> もし呼び方が違っていたら教えてください。  
>  Please tell me if my way of calling you is wrong.

