The A isn't your first solo of the day
The A isn't for you, it's for others. It's a reference tone for other players to listen to and tune (or ignore!). Play with a projected tone but without vibrato or dynamic variation. And always use a tuning machine or app.
If you're playing 2nd oboe it's usually a good idea to wait until the other woodwinds have tried their As before you tune. That way you won't confuse other players as to which tone they should listen to. And don't be tempted to play your favourite concerto excerpt or that tricky bit on p.3. Stick to As, Ds and Es to check your pitch and to check your reed sounds good in the ensemble.













