i hear this effect on some of Tim's solo songs when hes in concert with Dave. i'll try to emulate it but i don't know if this will help. Wah wah Wah wah Wah-that effect with a classical tune. Thanks
I think that the effect that you are thinking of would definitely a volume swell. He didn't use a Wah pedal on the tour from what I know of, so I think you are hearing a volume swell. Use a volume pedal to emulate, but good luck doin' it like the master!!!