Pictured here is a Red Rebane Exo, allthough across the Pond Surly makes something like this in their Little Dummy Bag line.

Just wanted to throw the knowledge out there that these exist, as they can be a problem solver for some particular situations.

The bike in the title pic is an Urwahn Stadtfuchs, which are 3D-Steel-Printed frames and they do actually look like that. Kind of a hilarious choice to use a high top tube frame for this, I guess the company figures if you’re the type of person to transport a guitar like this you also have handlebars lower than the seat instead of using a stepthrough frame.