Player bio, photos, videos, music, and more – Dan Schwartz fretless bass
From AllMusic.com (AllMusic link)

[Photos from https://www.psaudio.com/copper/article/the-bass-that-phil-lesh-gave-me/]

https://www.psaudio.com/copper/article/the-bass-that-phil-lesh-gave-me/

https://www.psaudio.com/copper/article/the-tuesday-night-music-club-redux/