This is an arrangement of La Mer by Emily Tsai. It’s quite astounding what she has done, and I am pretty sure this must have taken EONS to put together! Brava to Ms. Tsai!

From her YouTube page:
La Mer – De l’aube à midi sur la mer
The Sea – From Dawn Til Noon on the Sea
for Oboe Choir/Double Reed Choir
by Claude Debussy
arranged and performed by Emily Tsai

This was definitely a passion project of mine as La Mer is my all time favorite piece of music. I miss playing with my chamber groups, I miss playing in orchestra, and I miss all of my oboe friends, so I arranged this as something that could combine all of the above and pull out all the stops! However, the next arrangement I do, I will recruit said oboe friends as well as some bassoon friends because that bass oboe, while making me feel powerful to play so low, was a FRUSTRATING beast! I hope to someday be able to perform this live with other double reeders and replace those bass oboes with the far superior bassoon!