The Mandolin , Singlecone and Tricone .
All types are incredibly loud unamplified.
You will be able to be heard above banjos, mandolins, and accordions. If you play bottle neck slide style or Hawaian music you want a tricone. These guitars have a sustain that is like playing electric slide. The three cones set up a harmonic vibration that gives this unique sustain and an effect that is similar to an inbuilt in reverb unit. The single cone is ideal for jazz, jugband music, delta blues and just about anything except introspective naval gazing stuff.