My veluntina took forever to sprout.
The fastest banana seed can travel at 8 miles per hour :)
In general I read seeds can take one to six months to sprout and that it may depend on the variety as well as how fresh the seeds are.
I planted esete seeds last year and the first sprouted in 3 weeks, the second maybe in six weeks, and the third after a few months. That left two that didn't sprout.
I planted musa basjoo seeds and one seems to be sprouting every month for the past few months. That leaves quite a few unsprouted though.
I have musa sikkimensis seeds where none have sprouted after 3 months.
My problem is I usually forget to keep watering the pots I have the seeds in, so they probably go from moist to drought dry, back to moist.