how did he get that bubbly/watery chord sound?

[Muser]

it reminds me a bit of a multi FX type in the V-synth. no that it is made with a V-synth. but.

Band Pass Delay
-- featuring a phaser, delay line and five band-pass filters.

[Ferdinger]

hey muser,

thanks a lot mate, a band pass delay makes sense!
have you got a clue what synthesis technique he might have used?
i can't seem so get the sound from (filtered) saw/square-waves...
maybe combined with a pitch envelope?

cheers!

[Muser]

Not sure. ask a separate Q on GS on how to make this sound. I've heard it before, it's a common sound. can't remember where. I think I've even come across it as a sample somewhere too.

btw, I think these band pass delays are also multitap.. each with their own delay, pan and band pass.
sometimes they might feedback into the other bands as well. so you get that repeated shaving off of lows etc.