Kind of. Remember that the valves are providing a linear approximation of a logarithmic relationship. So the third valve is usually tuned to a flat 1.5 steps to

Kind of. Remember that the valves are providing a linear approximation of a logarithmic relationship. So the third valve is usually tuned to a flat 1.5 steps to be used primarily in combination with valves 1 and 2 to ease intonation problems.