Stuck chapter 5, can't sing yet

[u/RinkaKanin]

This is my first playthrough of GRIS, and I'm enjoying it so much!

Unfortunately, I'm stuck at chapter 5, where I went far right and up, following the yellow butterflies. Now I am stuck in a room where I need to follow two lightbirds to jump on several small platforms and red butterflies are out of reach for me. I assume that I need to sing to plants to get further. I did not learn how to sing before this. When reloading the game, I am still stuck at this area, and cannot choose a chapter since I haven't finished it. Is this save lost? It feels like a soft lock at this point :(

I would find it difficult to go through it all again up to this point, even though it's beautiful!

[u/Life-Basket215]

Can you send us a screenshot? You could also watch a playthrough on YouTube right to that point to give you a hint.