Looking for a headphone recommendation

[Simpo Two]

I owe someone a favour and have just learned that they play their keyboard through crappy old closed headphones that stop them hearing the doorbell ringing. So I'm looking for open headphones that will sound good for piano, budget c.£50. Is that adequate and can you guys help please?

ETA Something like this perhaps? http://www.ebay.co.uk/itm/Sennheiser-PX-100-II-Fol...

Edited by Simpo Two on Thursday 3rd December 18:22

[jbudgie]

Those headphones are fine, but they might not let the wearer hear a doorbell unless they were nearby.

Also don't pay that price as shown on your link, can get them much cheaper than that.

[Simpo Two]

OK, well I'm happy to spend £50 or maybe a tad more so perhaps something else?

[Finlandia]

Something like the V-Jays maybe? Open, good sound, half the budget.