IPad cuts out and stutters on AirPlay music but iPhone does not?!

Question

Hi folks, hope you can help with this problem, it's a little weird.
I bought an Apple TV a few days ago and have been enjoying streaming music from my apple devices onto the hifi system connected to the TV.  It works great except for one particular use-case, which is really frustrating.  Basically, I can do everything from the Apple TV, stream HD content, Netflix etc. all good.  From my iPhone I can do everything over AirPlay, stream music from iTunes, from Spotify, stream high quality video from YouTube or off the device itself, all works perfectly.
On my iPad 2 however everything works EXCEPT streaming music, it's bizarre.  I can stream a high def video from YouTube onto the iPad and AirPlay it over to the ATV and it never misses a beat.  I can mirror my screen onto the TV and stream games like Real Racing HD with no issues or lag whatsoever.  However when I try to stream music either from iTunes or Spotify from the iPad it stutters (cuts out) every 30 seconds or so, making the music intolerable. 
The weirdest thing is that I can queue up the same track on my iPhone 4s and on the iPad 2, play it from the iPhone and it works perfectly, pause that, play from the iPad and it's a complete mess.  Similarly, when music is stuttering and cutting out on the iPad, I can switch directly to the YouTube, or BBC iPlayer app and stream high def video over AirPlay with no sound or video problems, then switch back to the music - back come the cut outs. It's driving me mad, I want the iPad to be the device everyone uses to play music from, especially for parties, but at the moment I have to get my phone out every time.
So it's not a bandwidth problem or a wifi signal problem (because video over airplay is fine) and it only affects music and it only affects the iPad.
Any ideas?!?!
I should state that all the iOS devices have the latest apple software and I have already tried resetting the iPad, the ATV, my wifi router etc. etc.

Answer 1

"Sonos" your Airplay
Hi,
This observation elicited a Eureka moment. After months of problems with our airplay I had worked through almost every suggestion on the net to little or no avail.
As a result of this post I reconfigured one of our access points as a dedicated airplay network. Brilliant. We have now had 2 weeks of perfect airplay.
If you are reading this, you are probably fairly tech savvy. You therefore probably have an old router in the garage, shed or attic.
Get it out, dust it off and connect it to your network as an access point (Ethernet cable and a good internet search on your router). Set it up on an empty wireless channel as "*****airplay" or whatever suits you and connect the airplay clients (airport express, Apple TV, airplay speakers etc.) to that. Keep everything else on the original wireless network.
Interestingly, this is how Sonos have approached the wireless music solution.
This has worked brilliantly for us, I hope this helps others in a similar predicament.
Uncle Duck
Ps - This is a good work around, but , come on apple - it shouldn't need a degree in engineering
System
Variety of IOS devices-  phones, ipods,iPads, MacBooks et al.
2 access point - main router ((virgin media Superhub (aka Netgear)), separate access point, Netgear WNDR4500
Laptops,desktop, printers etc
2 airport express, 1 apple tv