Hello, this is my first post and the reason I know about this lovely Forum. I am racking my brain about a tone that Patrick O' Hearn is getting on his fretless and fretted basses during the 79' Baby Snakes era of Frank Zappa. I love the sound! Have no idea what it is. If anyone can help and offer any sort of suggestions that would be awesome. I have emailed everyone I can think of and to no avail.