YouTube: naddani: Wasted Years (Iron Maiden) – Acoustic cover:

YouTube: Thomas Zwijsen: Classical/Acoustic: Iron Maiden acoustic – Wasted Years:

YouTube: JonathanHarpa: Iron Maiden in harp and guitar – Hallowed be thy name:

YouTube: vkgoeswild: Iron Maiden – Run To The Hills – piano cover:

YouTube: WonkyFonk: Iron Maiden – Hallowed Be Thy Name (acoustic):

YouTube: ThomasZwijsen2007: Bruce Dickinson – Tears Of The Dragon (Acoustic):

YouTube: Jcronk: Folkified Hallowed Be Thy Name:

YouTube: hampusvh2: Iron Maiden – The Trooper (Piano):

Related:

Metafilter: “Thomas Zwijsen performs Nylon Maiden”