i did download the demo.......... i didnīt fail on xpert guitar, however, i find that chart not fun at all, so i wont buy it.
I wouldn't call them old school heavy metal... when I think "old school" metal I think things like Black Sabbath, Iron Maiden, or even Led Zeppelin.
They are old school thrash though, which I do like.
the middle part reminded me of blackened lol but a good song none the less and i kicked its ass on guitar amd drums :)
Here's the video preview: http://www.rhythmauthors.com/song_preview.php?id=32
Overall it sounds like Slayer to me. Which is not a bad thing. I love this song and its drum chart.
happy to report i passed the demo on my 2nd attempt, i'm slowly patching up my self-respect.