This is a 4-string mandolin in sycamore with a western red cedar top. I always wondered why mandolins had to have double strings, so made this simple 4-string version to find out.
It has a big "pop" attack, followed by less sustain than usual. As such, it would be great for fast melodic music, like Irish, as the melody comes through very clearly. A good instrument, very easy to play with the narrow neck, as long as you don't need sustain or tremolo.
For this prototype, I kept everything very simple - plastic bindings, carbon neck reinforcement but no adjustable truss rod, gel finish, etc.