Anyone else getting errors when importing Music Library music into non-native apps?

Question

I have had a bunch of Music Production apps On my iPad for a long time and all the way through iOS four iOS 5 they worked just fine importing songs from my iPod library on my iPad and my iPhone however all of a sudden after the iOS six update they do not any longer seem to have the ability to import these songs.  It appears to be a universal problem across ALL non-native apps ... On songs that are DRM-Free.  I have specifically tried importing tracks that have imported before with no problems, downloading new copies of the same tracks, and purchasing new DRM-free content in the iTunes Store.  None of which will work.  My devices are not jailbroken, or altered from factory in any way, I just purchased a new iPhone 5 and a new iPad 3 and neither of them are allowing me to import these tracks.  I have tried:
AnyTune / AnyTune HD
Vocalive (paid version) from IK Multimedia
Amplitube / Fender Amplitube from IK Multimedia
ISequence Pro HD
Studio HD
Is anyone else experiencing this problem?  I have -- on a few apps -- been shown the "Convert this song to a different format and try again" dialog, and I can import songs if I use my laptop and a browser, but I can't seem to import any song directly from the Music Library stored locally on my iPad or my iPhone.
Help?
Best Regards, Rob Norton

Answer 1

Thanks, Ed.
Well, if iTunes is running, I figured out that you can drag the folder where the wav files are directly onto the main portion of the iTunes screen. This will
import the wav files into iTunes. Then group select the new song
entries and use "convert selection to AAC" from the Advanced menu.
There may be a way to convert without creating double entries for the
songs (I think that's the way you have to do it in iTunes: hence my attitude that iTunes is convenient in some respects, but less than clear in other respects..in other words, it's not a perfect program), but I delete the wav tracks after the conversion.
This is what I've gleaned from using iTunes a bit and from having been advised by friends. So, other than using a third-party freeware like X Lossless Decoder to convert music files before moving them onto iPod, apparently this is what you have to deal with when using the iTunes program.
If any Apple people are reading this, I would personally like the iTunes "importing" and display functions to be clearer and less cumbersome to use (like that third-party freeware). iTunes seems to be easy enough to use if you're importing music from a CD, but measurably less so if you just want to convert music files residing elsewhere on the computer's hard drive.