Honestly, I'm playing my first piano concerto (Mozart's 19th) this semester for a competition. Memorization was the easiest for me...not just my part...but the orchestra's too. The problem I'm having is shaping it melodically. Mozart, like almost all pieces, can go from beautiful, tear-dropping beauty to dull, boring nothing without the right effort put into it. The competition is in 16 days and I'm in the polishing phase. I'm very musical, but I just can't figure out how to make this concerto more beautiful and retain the audience's (or in this case, the judges') attention. Let me know if there are any secrets to Mozart that you know of.
Hi Jamie,
I played this concerto about a year and a half ago with the Chamber Orchestra of Florida! It's such a great piece, isnt' it? It is one of 4 Mozart concertos I've done with them. I am an amateur pianist, but Mozart I can talk about a little.
Are you playing all 3 movements?
I think you chose a hard one! The first movement of this is difficult not because of the notes, but because of the monotony that may arise in the piano part if you don't pay close attention to the phrasing and dynamics, and the
extreme importance of the orchestra-piano interaction. Of all 4 that I've played, this movement of K459 is most dependent on the interactive quality.
Suggestions: Practice as much as you can with the orchestral accompaniment (NOT a recording--with your teacher on another piano, or whatever). Then you can hear what's going on and respond. Keep the tempo "alla breve" i.e., 2/2 not 4/4 as some scores are marked in error. It must flow along dancingly in 2. Lots of energy!
Don't forget to make the most of the rising and falling triplet passages--they must go somewhere and not sound mechanical. Keep your touch very light, but emphasize the "melody" line, i.e., when it is the first notes of the triplets, a little bit.
Put your heart and soul into the cadenza!
2nd movement: The only allegretto Mozart ever put as a second mvt of concerto. Play it allegretto, NOT andante! Again, the flow is key. It
will be boring without the constant moving, lilting quality. Phrasing of course. The little canons with the orchestra are magical!
3rd movement:

go wild! This is Mozart at his best, completely unbuttoned and joyous. (Hope you've practiced your scales for the last 10 years) Again, think in whole measures and phrases, don't get bogged down in the notes (ha!), and keep the lightest touch you can in the fast scales, while keeping it dancing and
not driving. the last thing you want is to sound like you're just trying to get to the finish line. It is a light-hearted piece, though the fugal stuff is sort of pseudo-serious. But I think Mozart was only bluffing, because he soon gives way to more playfulness. The coda is all comic opera, so emphasize the dynamics.
For all Mozart, the best touch for the rapid runs is non-legato and very little pedaling--especially on a stage in a big hall with orchestra, pedaling will obscure all your articulation. Don't get too precious or delicate--when Mozart says f or ff he means it (not in a Rachmaninoff way, of course, but don't pay too "cautiously"--let it fly!).
Have loads of fun and good luck!
Teresa
P.S. Listen to some recordings like Perahia's, Brendel (who I think is too driving in 3rd mvt!) and others.