Inktober is over, but it would be a mistake to get out of inking practice. Thus this trifle, a semi-obvious pun with a little serendipity in that an anatomical drawing and a bit of faked musical notation counterpoint each other harmoniously.
It is good to learn the heart. Like a city, the heart does not make sense without its inlets and outlets. That goes for the metaphorical heart as well. ❤