Is the Goddess Harp from Skyward Sword the harp Sheik plays in OOT?

So I just saw someone cosplaying as Sheik on Facebook, and she was carrying Sheik's harp. But the person posting the photo - a mod from a Zelda Facebook page - referred to it as the Goddess Harp specifically.

It would make sense if Sheik's harp is the Goddess Harp, because that would imply that it's handed down to Zelda in the same way that, say, it will always be Link who gets the Master Sword. But is there anything canonical to confirm this either way?

Solution 1:

Yes, it's the same harp.

As Pyritie's comment points out, Sheik specifically played the Goddess Harp in Hyrule Warriors.

Sheik with the Goddess's Harp in Hyrule Warriors

Considering that

1. Sheik played the Goddess Harp in Hyrule Warriors,
2. the two harps look extremely similar, if not identical, and that

3. Shiek is Zelda in disguise,

it seems that the harp Shiek plays in Ocarina of Time is the same harp seen in Skyward Sword, the Goddess Harp.

Note: since there is no official/canon info on the subject, a conclusion based on deductive reasoning is our best option.