Last month master pianist/composer Sonya Belousova charmed us with on the spot arrangements of classic Nintendo themes, many of which she had only just heard for the first time. I was hesitant to post her follow-up, but then I heard her version of "The Scars of Time" from Chrono Cross.
I'm currently in the middle of my eighth or ninth replay of Chrono Cross, so Sonya's valiant attempt at replicating the mournful wind instruments of "Scars" with a massive custom string instrument arrived at just about the perfect time. Her version of "Aerith/s Theme" from Final Fantasy VII isn't bad either, especially considering the music doesn't evoke the emotional reaction in her that it would someone who'd played through the game.
She also beats the hell out of the poor piano while playing the main theme from Skyrim, replicates the Halo choir with keys and recalls a past BioShock performance.
You can check out more of Sonya's work at the official PlayerPiano YouTube channel, including music from Street Fighter, Tetris and Akira. They've also recently announced a full album of Nintendo themes for anyone who donates at least $10 to their Indigogo campaign.