It may just be I, but the new music from the quite recent Nether Update (these tracks being "Rubedo", "Chrysopoeia", "So Below", and "Pigstep" all composed by Lena Raine) is silent when played. While I do not have a big enough sample size from testing the ambient Nether music, I can safely say that Pigstep is, most likely, bugged and is completely silent.

If Mojang disclosed a new music DLC and I don't know about it, this will make this post seem very silly and thus has the permission to be taken down, however, if not, we have a bit of problem.

I have not tested this on other devices than a iOS iPad so it may be working on other devices and I may not know about it.

I know very well the Nether Update dropped recently but criticism is always on alert, I only wish to help make Minecraft a better experience even though I have little power to do so.