となると
(To naru to)
when it comes to / if it's a matter of.
Connection rules
- +V plain / i-adj / na-adj (+ だ) / noun (+ だ) + となると.
- +Perspective-shifting — 'now that we're talking about X...'.
- +Close to 〜となれば but slightly less formal / more conversational.
Examples
1.
留学となると、お金が心配だ。

Ryuugaku to naru to, okane ga shinpai da.
When it comes to studying abroad, I worry about money.
「when it comes to / if it's a matter of」
2.
いざ話すとなると、緊張する。

Iza hanasu to naru to, kinchou suru.
When it actually comes to speaking, I get nervous.
「when it comes to / if it's a matter of」
Practice
When it comes to professional singers, their expressiveness and vocal power are completely different.
やはり___、表現力も声量も全く違う。
Romaji also accepted