¿Qué significa By the side of the mill with its sails hanging still and the bridge so quaint ?

See a translation

Thank you, hapybrian！
This is a lylic of The Red Mill, operetta.
I translate like this ：
古風な趣のある橋がある、帆が垂れて動かない風車の傍で
How is mytransition?

Thank you, Hiyuu！This is windmill. Below is a YouTube I found.
please check it if you like！
https://youtu.be/guyc9m6fRUk

@Hiyuu：Thank You ！！(^o^)

I didn't know this operetta, but I fond it very interesting. I still have some questions but now Ihave to go. I would be happy if you all could help me later...thank you！！

I am translating a lylic, BY THE SIDE OF THE MILL from an operetta, THE RED MILL.
I have some questions below：

MEN
Girls, as you know we are wed alone to art
ねえ、知ってるだろう、僕たちがどんなに絵を描くことが好きか。

and it breaks our heart but we have to devote all we own to art.
芸術は僕の胸を張り裂きそうにもするけど、僕の持っている全てを芸術に奉げなければならないんだ。
→What does break their heart ？ art？ or girls row? Before this lyric, GIRLS asked them to stop drawing according to the lyric that I attached.

So like the best of good friends we have to part.
だから親友のように別れなければ。
→from what ? from art? from GIRLS？

But to ease the smart let us try to forget that we have to.
でも、この心の苦しみを和らげるためにも、その事は忘れよう。
→What does they mention as the smart？What do they have to ？

Below is a YouTube I found.
please check it if you like！
https://youtu.be/guyc9m6fRUk

@Hiyuu Thank you for your kind explanations! I wrote my reply yesterday but I carelessly deleted it before I sent to you, sorry!

While I waited for your answer, I sent the same questions on the Hinative openly from my curiosity.
Then an American man told me, " the smart " is the pain of giving up the women, and they want to forget that pain. The idea of giving up women for art breaks their heart, but they have to do it anyway. So, they must part from the women, because they have to stay devoted to art.

"ease the smart" seemed to be British English.

I used 心 for heart as mental condition. I don't mean "ease the heart" .
I mean release from the men's torture or worry that art is difficult for the men and they can't make money from art although they are wed alone to art.

Now I know I was misunderstood and my translation was incorrect.

Sorry for my long sentences. I can't make them nicely and precisely... .

@hapybrian 詩っぽくていいですか！ありがとうございます！訳すことは本当に難しいです。知識やセンス、想像力など、色々と持ち合わせていないと難しいですね。
　
日本語が上手ですね！嬉しいです！
ちなみに、「詩っぽいだし」とは言いません。「詩っぽいし。」（カジュアル）か、「詩っぽいですし。」（少し丁寧）だと、自然に聞こえますよ～！

Thank you for your kindness (^o^)/

@hapybrian：っぽい　は、形容詞の扱いですね。
michami の話は嘘っぽい
という風に使いますね～(笑)

@hapybrian： "smart" is also used in American English to mean "pain".
I see, thank you for sharing me! Interesting!