Zweihander bitrate/refresh rate?

I am going to buy Zweihander but first I want to know the bitrate and refresh rate since i'm a bit of an audiophile.

320kbps (.mp3)

I'm not quite sure what the refresh rate is exactly but i see 44100Hz

Really? Refresh rate? If you're going to call yourself an audiophile, you should know your terms. It's called sampling rate. Besides, if you would just look at the Bandcamp page, you would know it comes in FLAC.

They mean the same thing.