Stem attachment of blackpetrucci head is off
The blackpetrucci
note head style is a variant of petrucci
. Its stem attachment differs from petrucci
and is not centered, which is not expected per https://lists.gnu.org/archive/html/lilypond-devel/2022-01/msg00096.html.
\version "2.23.6"
{
\override NoteHead.style = #'petrucci
c'8
\override NoteHead.style = #'blackpetrucci
c'8
}