Conditional Form ~たら


I've been texting with some friends and I asked:

> どんな音楽が大抵聞きますか。

He replied:

> 音楽は...なんて言ったら良いのか笑

So what exactly does the ~ったら mean? I've gathered it might mean something like
'if I say...'

Some examples of using this form would be greatly appreciated.




You're right! Generally XたらY means "if X then Y."

In this case, ...たら良い literally means "If... then (things will be good)" so
なんて言ったら良いのか means "Oh, what should I say (in order for the situation to be
good)" or more naturally "How should I put this."

In the same sense, どうしたらいいのか分からない means I don't know what I should do (= I
don't know the thing that, if I do it, things will be good).

