iPad audio out to interface

[PlanetTwylo]

I would like to use an iPad app as a sound pad. The question is, what is the proper way to take the audio from the iPad to my interface. I tried googling the question and all I came up with was how to bring audio into the iPad, not bring it out. Ideally, I would like to go from the lightning connector to the 1/4 inch input jack on my interface because that is the most universally compatible with iDevices. However, in a pinch, I would accept a solution to properly bring the audio from the headphone jack out.

Thanks.