User blog comment:LambdaSK/I posted the GUMI version of "The Frozen World"./@comment-5017500-20120618185046

Oops, I made a mistake in encoding the video! Unnecessary audio resampling (44.1kHz <-> 48kHz) occurred and the sound quality was lost significantly. orz

In my original WAV file, GUMI sings more smoothly. I will post an improved version to YouTube later. Please wait a while. I'm sorry.