Good 4 a warming up =]

Idk if you know this(and it doesn't matter anyway), but there is a song by a band called Capital Inicial (worst Brazilian band of all time in my humble opinion), which sounds just like yours(nothing personal =D)...
I'm not saying that you copied it or something like that ...
I bet you had fun playing it. That's all that matters in the end.

Keep it up!
Peace

CAPITAL INICIAL A SUA MANEIRA
http://www.youtube.com/watch?v=bzh6nH 0RBZ0

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