Mozart K.33B - always had a fondness for this piece ever since I first heard it in "Amadeus," sounds like an engine revving at certain points - you think the tune is running out of energy, and then player turns the crank
K.33i, Recitative and aria for tenor and orchestra, "Or che il dover – Tali e cotanti sono" - alright, hadn't heard a recitative in a while, that was fun, the aria might have been a bit of a let down though, for how long it went on