I cut a page the same size as a smash book page to test. I'm adding the mtc file which has notes inside, and a svg file. For the svg just put the months and calendar pocket with score marks on their own layers and hide them, print the calendar and then hide that and do a print and cut of the pocket.
Here is a picture of the calendar that gets printed
And here is a picture of the pocket that gets cut.
SCUT3 File Here (has score lines)
MTC File Here
SVG File Here
Calendar pocket measures 6.758 w x 6.450 h