Symphony Orchestra tuning

Or to state that in a slightly different manner, the oboe is one instrument most likely to be the closest to the ideal pitch without trying too hard, so it’s logical that all others would use it as a reference.

Also, compared to an instrument whose sound is not easily sustained, like a piano or harp, an oboe can hold a steady tone while others listen.

For a time (about 2 weeks) we had 8 oboes in our high school band. Outside of rehearsal, I heard my band director say “The only way to make 8 oboes sound good is to break 7 reeds.”