No recordings that I know of, at least none have surfaced. I don't prohibit them though, and people often do take pictures or make recordings.

Scott, here is Don's answer about his bass. Sorry for the length.

Hey Matt
Bass is made by Zeta and is not in fact a Ned Steinberger creation. Zeta is the company that gained fame originally for their electric violins from the early days in the 70s and 80s. They made all of Jean Luc Ponty's elec. violins for years. My bass was their top of the line and when mine was made back in 1993 the retail price was $6500.00. I bought it used in 2002 for a lot less. Unfortunately the Zeta company, like so many other great music companies in the age of corporate monopolization and corporate Big Box music stores agreeing to only carry gear by and of the corporate conglomerates, is no longer in business. They built fine hybrid instruments on the cutting edge for many years and were the most innovative and visionary company of their kind in the 70s-90s.
Thanks for asking and feel free to forward my response to your friend who had inquired as to the origin of my bass.
Regards
Don

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.