I am currently practicing the first movement of the 2nd Rachmaninoff piano concerto. Luckily I have no troubles reaching the chords in the left hand (Maybe because I am left-handed? The only time it comes in handy..). However I do have troubles with the 2nd and 3rd chords of the right hand. The ones on the picture:
Often I miss the sound of the top note. I can reach the chords easily when I press the keys individually down, but striking down with the correct position does not always work. Is there a good way to practice these chords, so that my hand is already in the right position at the beginning? Like for example resting for longer periods in this hand position, stretching the hand or so?
Usually when I had a difficult chord, I just tried to press it down as often and as relaxed till it was easy to reach. But here I have already troubles to come in the correct position before pressing down. The other chords are not a problem, so it has to do with the index finger spaning so far from the pinky.