Not quite like the albums you mentioned, but here's some stuff that all incorporates some classical instruments with modern rock instruments
- Laideronnette or zatracenie by matryoshka - maybe the most like what you mentioned, ambient-ish with strings and piano
- イリヤ (- il y a -) by 夢中夢 (mutyumu) - maybe a bit avant-garde, but makes heavy use of strings and piano
- Enjoy Eternal Bliss by Yndi Halda - post-rock with strings
- ONDA by JAMBINAI - Korean post-rock that mixes traditional Korean instruments with modern rock instruments
With neovim you can even put vim in the textarea.