There are more, just search for “bass tab tubular bells.” Most, if not all I’ve seen so far, seem to be for 5 string bass.
@jonathanhaynes43 I came across another tab today (30 July 2022) for Tubular Bells part I.
I have not played it, but perhaps you can figure out the part you’re interested in: Mike Oldfield - Google Drive
There’s a story of a concert they played together, and there was a girl in the crowd Corey had his eye on, and after the last song Corey too off his mask and handed it to the girl. But she was a Muse fan, and Dominic now has it hanging on his wall.
I’ll be seeing them live in 9 days in Cologne stadium. The day before, Steve Harris has a gig with his second band British Lion in a small Cologne club. “Unfortunately” I can only see him with Maiden that weekend. Can’t wait.