ilovefuzz.com

Maybe also place a reverb before the filter. That could shift things in the right direction.

"create sonar pings effect"

https://www.youtube.com/watch?v=ioyu_vPKxQg

tap something either on the pickup pole or on the highest string above the pickup. wet verb/delay. metal slide or similar slammed and held onto the string could do it. mute with fretting hand

Ah, yes, maybe it's worth noting that I played high flageolet sounds (harmonics) in my demo.