"Only the wise man is content with what is his. All foolishness suffers the burden of dissatisfaction with itself".. Seneca Letter IX from ''Letters from a Stoic'' By Ivan Cardozo Category: Music Theory · Rock Guitar Level: Intermediate – Advanced Website: ivancardozo.com Have you ever wondered why "Smoke on the Water" sounds simultaneously dark and cool? Or why the main riff in Led Zeppelin's "Moby Dick" feels both heavy and almost hypnotic? The answer, more often than