This lovely Larilee oboe needed “minor surgery.”   The Ab/G# key lost all it’s motion. Four keys and a side rocker key had to be removed to reach the area needing assistance.  The replacement with a new shiny spring — sure did the trick.   She “sprung” back in action right away. Such a tiny thing can make repertoire difficult to play in either Band or Orchestra — Bb, Eb, A, E.   Traditional folk music would be the only option — in the key of G or D without a functioning Ab/G# key.