Irig / GarageBand question

[41Hz]

I’ve ordered an irig and want to import audio tracks from Apple Music to play over and record myself.

i haven’t used GarageBand before but just had a play around and it won’t let me import stuff from my Apple Music library.

To get around this I wondered if I play a track from Apple Music with a 1/8 stereo cable out of my phone headphone output (with lightning adapter) to 1/4 left/right mono plugs then record the individual left + right channels via the irig would this effectively get a fairly reasonable quality stereo mp3 track from my Apple Music library?

if this doesn’t work are there any other workarounds?

edit- will be using GarageBand on an iPad (I don’t have a Mac)

Edited December 30, 2018 by 41Hz