Documentation/extending/programming-interface.itely: inline Scheme code
is nonsensical. A different example needs to be found since the example
"demonstrating" the inflexibility of \tweak can be fixed by just writing
F = -\tweak #'font-size #-3 -\flageolet
in the first line rather than
F = \tweak #'font-size #-3 -\flageolet
There might be some place where one might use this example in its fixed
form, but as a cover story for the need of inline Scheme code, it is a
complete failure.
--
David Kastrup