When doing my own arrangements of covers, I always struggle to find ways to replace piano/keys with just my guitar. On my version of "All of Me", I feel like I did alright... but for "Happy", I'm not sure. If you have a moment, check out
https://www.youtube.com/watch?v=VAxaYi1dG-0 and let me know what you think I could improve.
Thanks!
Bryan