I’m trying to merge two voices, but the grace notes get lost in the process. What do I need to do differently? Thanks for any advice!

Greetings

André

(setf v1 '(-1/4  1/28 eb5 p ten a4 bb2 ff ten+marc (-acc 1/8 gs4 mf leg) 1/28 b4 ppppp ten -3/28))
(setf v2 '(-6/28 (-acc 1/8 f6 ff) 3/28 d4e9 pppp ten -5/28))

(merge-voices v1 v2)
=> (-7w. 7q^7h. d4e9 pppp ten eb5 p ten a4 bb2 ff ten+marc b4 ppppp ten -7h.)

Will check.

any solutions?

This one is very tricky. I will dig into it after I finish something we all wating for :-)

A little hint for the community? :-)