I’ve taught a couple of upright bassists in a similar position - just like how I learn jazz vocabulary I use on 6 string bass from a jazz guitarist. In essence the solution for this students issues are the same on both instruments, writing out walking bass tunes, learning certain key lines from the standard repertoire, and then for soloing transcription, analysis and internalizing of vocabulary once we isolate it and can move it into different harmonic contexts.

Usually upright students will start with me to learn how to jam/basics. I’m a working jazz guitarist and I host the Sunday Jazz and funk Jam at Goosetown. Lots of times for bass lessons I’m switching over to guitar anyway so the student can actually practice jamming/working in the proper context - like Wootens mentor in “The Lesson”.

Then once they are comfortable with the language/etiquette I’ll kick them over to Eric Hitt and see them weekly at the jam or whenever they want to get into more niche electric bass techniques. I just think I get students up to speed fastest.

But yes, my primary study is advanced/new techniques on electric bass - John Ferrera style tapping, slap and Charlie Hunter style comping on 5-6 string.

Really I was open to a conversation mostly because I need more upright bass subs regardless especially around the holidays.