Logo Needed: Guitar Mastery Workshop

Guitar Mastery Workshop

This online course will teach rock guitar (mostly lead guitar) to guys aged 35 to 55 ... guys who grew up on rock bands like Van Halen, Metallica, Ozzy Osbourne, Rush. We are NOT targeting teenage kids or young 20-somethings, so we want to keep it looking cool ... without over-the-top heavy metal imagery or flaming guitars or silly cartoons or anything that looks cheesy. We are targeting guys who want some serious guitar training so they can finally get really good at playing an instrument they always loved. It should feel seriously awesome and professional.

We have a seriously cool course that teaches older dudes how to play ROCK GUITAR. We need a logo that will appeal to them and make them feel like they're in the right place.

This is the kind of goofy logo (and overall look) we do NOT want:
http://www.guitarcontrol.com/b.php

Here's another one showing what we do NOT want:
http://metalmethod.com/

These might appeal to teenage kids. But we're not looking to sell this course to teenage kids. We need something that feels more professional and sophisticated. Something that feels WORTH spending money on.