This channel takes mostly SNES games, mostly RPGs, and plays them in a full one-to-two-man orchestra. Aside from being technically impressive (the main guy plays like 20 instruments, and his guests like the trumpeter are extremely skilled as well), the arrangements are all extremely well done and faithful to the original composition.
This is my favorite music channel on YouTube, and nobody else is talking about it, and why is nobody else talking about it?
He only has 10K subscribers, which is criminal as far as I'm concerned.
To achieve the orchestral effect, he records each part multiple times. For the track above, "On That Day 5 Years Ago," he says, "I do each part 7 times, and this track in particular has 5 string parts for a total of 35 string tracks."
This just skims the surface of the music he's covered. There are very few tracks on his channel that I don't think are excellent, and I strongly recommend going through his backlog. If you're looking for more suggestions after listening to the above, I'll point you to Final Fantasy IV - Within the Giant, Chrono Trigger - To Far Away Times, Seiken Densetsu 3 - Where Angels Fear to Tread, and Lufia 2 - Sinistral Battle. And then I'll tell you to listen to the entire channel, because it's incredible.