This was my quadrennial visit to Avenue Q, my favorite musical roadway, ahead of 42nd Street, Christopher Street, Henry Street, Broadway, and Sunset Boulevard (forget about Fleet Street).

Unlike some shows, it has not lost its relevance after 20 years. Even the puppets seem like they haven’t aged a day.

I hadn’t previously been to the North Theater at the North Shore Center for the Performing Arts, where the Music Theater Works is working at music theater while its new building gets built. I loved it, a perfect fit for this show.

I want to give special mention to the two cast members charged with jumping between characters, Andres DeLeon and Melissa Crabtree. Take it from someone who has had his hand up a puppet’s butt (see my piece on my most recent journey to Q at the Mercury Theater), there’s an emotional attachment.

Yet these two actors flawlessly flowed between wildly different persona, demonstrating quick changes, not merely in their handheld attachments, but also in their physical manifestations and vocal ranges.

It’s all great fun, with some very smart commentary mixed in, and we all have the double EGOT-winning composer Robert Lopez to thank for it. I can’t get enough of his work, so I’m seeing The Book of Mormon again in three weeks. It’s the best show about following the advice in a book since How to Succeed in Business Without Really Trying, which was about the business of wickets, not the business of religion.