ZAP Guitar – No Strings Attached is a free virtual instruments and education plugin developed by instruMagic. Compatible OS(s): iOS.
ZAP Guitar is a unique digital guitar, that sound a bit like Eddie Van Halen’s guitar, and that lets you perform your songs on the iPad.
Type (or paste) lyrics and chords into the built-in guitar and take your songs with you everywhere you go.
Once the song is entered, anyone can play it, even if they don’t play guitar.
http://instru-magic.com