Harpejji

When the piano and the guitar have a baby.

The harpejji was invented in America by the audio engineer Tim Meeks.

Finagle to the bagel

In mathematics, a "finagle" is any variable that is raised to the power of zero (0), which is shaped like a bagel, and always equals 1, or a whole bagel.

5 raised to the power of 0, which equals 1, is a "finagle to the bagel."

koi kazoo

A kazoo (musical instrument) in the shape of a koi (Japanese fish).

Katrina played the koi kazoo.