We went to see ZZTop recently and Billy Gibbons is a master of those elusive pinch harmonics. Saw him use the fingernail on his third finger to get those super cool tones while playing. It's also much easier (don't have any idea why) to get them from the bridge pickup than the neck. It's an acquired touch...short grip the pick, or use finger nail...strike the note and very lightly mute with fleshy part of finger or thumb...takes a little practice but it's not all that hard or mysterious once you get the formula down. Bridge pickup with volume cranked up! Good Luck and have fun practicing this!
Middleaged Redneck sorta guy who refuses to grow up...passion for music, especially Southern Rock but like bout everything cept Gangsta/Hip Hop. Collect guitars, mandolins, and love to ride Harleys.