I’m almost afraid to blog this because I know so many people who would be hoping I made it for them.
So. I wanted the black keys in sets of three purls each note, because black keys are raised in real life and purl stitches are too–but not if there’s only one standing alone. A single purl stitch will sink and disappear between knit stitches, but a trio would have them standing shoulder to shoulder, holding each other up high.
I couldn’t make the math of it work in the small stitch count of a hat. Thus this simplified version.
Leading to the realization that…I can’t count. So I had to fudge a few extra stitches into the white at the start of the intarsia