PLEASE HELP ME FIND MOTZART PIANO MASTERPIECE I USED TO PLAY IN RUSSIA! :-)

[eleonoraz98]

Hi, everybody! I hope all is wel! I used to play Motzart piano masterpiece in Russia that starts with three accords in lower octaves, and the third one is longer than the first two....My teacher used to call it either concert or sonata. I could be either in D, A or C major. It's very loud, emotional and grandious! Please help me find it! I LOVE IT and decided to play it again! :-) Thank you! Eleonora