Can't find the episode 11 version of the ending

I think they didnt publish it and im not sure if they will unless they decide make full ost album. I checked on spotify of the music artist and this song is added as single and in special edition album, but theres no instrumental. Youtube don't seem have it instrumental either, theres just official mv with full song. Seems it was only used to fit few more words in the 11th episode to make it more emotional, or they mixed the non lyrics parts, but who knows, maby someday we will get instrumental as official release. For now you could search for fan video versions played on piano, covers etc. if you would like hear just music. Sorry i wasnt much of help, but I didn't want leave the post with no answer :")