I'm sure we have all experimented at one time or another with "unconventional" instrument designs...
Here is one in my collection. Background... I recently built a Tiple, and was intrigued by it's 3 string course with an octave string lay out.
So in my curiosity, I built this.... it's made of cypress with chinaberry front and back panels.
It is an electric solid body instrument, with 6 strings, in 3 courses... either the more conventional 2 x 2 x 2,
or my favorite the 1 x 2 x 3 with a triple octave melody!

The first course is a low "D" string, the middle course is dual mid "aa"'s, and the bottom is a triple course with an octave .. "d D d".
I've tuned like the dulcimer or bouzouki, either D aa dDd, or G cc gGg.
It's got a 22 inch VSL, chromatic frets and a zero fret for a nut.
It sounds unlike anything I've heard before, but it is fun to play with a slide or by finger picking melodies.
And you can use blues bar chords. But what do I call this thing?

