One could do worse things with one’s retirement than playing the Mozart quintets with every string quartet possible. Since violist Roger Tapping retired from the Takács Quartet, he has appeared in Washington as the fifth wheel with the Jupiter Quartet, the Parker Quartet, and the Daedalus Quartet. This month, Tapping is at it again, with the Auryn Quartet from Cologne, in a series of three consecutive Sunday concerts sponsored by the Foundation for Advanced Education…