I found this way to complicated and hard to understand. In addition, there's dozens of scales to memorize and is (in my opinion) very tedious work. After going through the entire CD several times, I still had no idea what modes were. Until I found Desi Serna, his CD made it so easy to understand and use it makes me feel silly it took me so long to get it. Check out Desi Serna, he is very easy to understand on all his CD's. Finally, I get it!