TPHD-Wii U You can listen to samples of the official soundtrack here

[Dio]

https://topics.nintendo.co.jp/c/article/c86f2beb-d535-11e5-adcb-063b7ac45a6d.html

With headphones on I can tell the sound quality is better than the originals but I still think they could have done more to improve the soundtrack.

 

[13rucezzz]

Atleast it's something then hearing all tracks in HD(kinda) will certainly make the midi sounds more bareable.

 

[Ventus]

I can still hear that MIDI electronic noise in the background. **** sux brah. I respect this tracks even less now.

 

[thane98]

The Hyrule Field track definitely sounds different, but I can't really tell that any significant work's been done to the other tracks.