I've been playing for about a year, and I was wondering if anyone had any riffs, exercises, or tips on improving alternate picking and legato phrasing. I really want to learn so I can play the Heartbreaker Solo by Led Zeppelin, but first I need to improve these. Any help will be appreciated!

Link for the Heartbreaker Tab- http://www.ultimate-guitar.com/tabs/l/led_zeppelin/heartbreaker_ver5_tab.htm
For alternate picking, I found if you don't concentrate so much on what your picking hand is doing(sounds wierd but it worked for me), just get the alternate motion down pat, and then go from there.
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Hey ClutchMM,

IF you come visit www.licklibrary.com - we have a wealth of tutorials etc that could help you... including one for Hearbreaker itself - as well as a Jamtrack for Heartbreaker so you can practice!

Hope this helps... good luck!