“The Legend of Zelda: Symphony” by RDilux allows you to play an Ocarina using your DS.

Changes:

+ Fade in/Fade out effects
+ Added link animation (thank you Foxi4 for helping me a little out)
* Improved sound (not sure not tested)

http://dsgamemaker.com/dsgmforum/viewtopic.php?f=13&t=1846