In the Potomac Valley Youth Orchestra, I am principle tubist. This semester, we are playing Tchaikovsky's 4th. The tuba tacets for the second and third movement, and only plays for half of the first, and most of the 4th movement. Such is the life of a tubist Anyways, to the point: Since I tacet for two entire movements, I am going to play DB for those two Today, I used one of the basses at the school we play at, and it had a fingerboard that was very.... odd. All fingerboards I have seen have the constant circular curvature (the radius of the FB). This bass had the constant curvature only under the G, D, and A strings. Under the E string, it angles off, and is a flat board under the E (see my pic for a clarification). Is this because it is a student model, or some new innovation, or...? The section of the fingerboard in question is pointed to by the arrow.