Notation: dotted half-note and half note in the same chord

[Mats_Frendahl]

S. Karg-Elert;

Is this correct notation?

(Not a major problem in Dorico;

but is it the best notation?)

TIA.

[Mark_Johnson]

That’s probably as clear as it can be on one staff, for one hand. The obvious alternative would be a whole note A♭, which would be harder to read.

(So glad to see you know exactly how to wrangle the voices, column index, and tie!)

[Mats_Frendahl]

Do you think the start of the tie should be closer to the half-note, or should one regard the dot to “reserve” space after, even for the half-note?

[Mark_Johnson]

I would shift it closer, like the original, definitely. The default position, leaving room for a dot that isn’t there, makes the eye suspect a dot was intended and is missing.