Hi David, Thank you for the helpful reply and documentation/explanation.
> -- Function: ly:chain-assoc-get key achain default-value > strict-checking > Return value for KEY from a list of alists ACHAIN. If no entry is > found, return DEFAULT-VALUE or ‘#f’ if DEFAULT-VALUE is not > specified. [...] > > DEFAULT-VALUE is specified as markp, and a markup is never #f. So your > condition is always true when the specified KEY cannot be found. So how could I code the when-property function so that it is false when the KEY cannot be found? Thank you, Kieren. ________________________________ Kieren MacMillan, composer ‣ website: www.kierenmacmillan.info ‣ email: [email protected] _______________________________________________ lilypond-user mailing list [email protected] https://lists.gnu.org/mailman/listinfo/lilypond-user
