error code 1 - GUILE signaled an error for the expression beginning here

[ming tsang]

Dear Lilyponders,

How to resolve the GUILE signaled error?

The same #( ... ) for other code don't have errors, but line 12 does.

I am running with frecobaldi v3.1.3 and lilypond v2.23.3 and in window 10.

Thank you for the help.

waiming Tsang.

--

ming (lyndon) tsang

file_name+path.ly
Description: Text Data