Liszt - S. 254 Spanish Rhapsody immediately comes to mind. So does Alkan - Op. 39 nos. 8-10 Concerto for Solo Piano (Jack Gibbons has an incredible performance of it that's broken up into it's movements.Also Liszt - S. 219 Grand Galop Chromatique (Cziffra).Why do you want pieces with "grand openings?" Plenty of incredible pieces (Liszt - S. 420 La Clochette, Chopin and Fauré Ballades, Alkan Le Festin d'Ésope, etc.) start slow and build up.
I thought the rach 2nd sonata and chopin 3rd sonata start with strong opening statement?Schumann fantasie also springs to mind.Isn;t the opening of Beethoven Hammerklavier grand enough for you?Aha - I see you say no sonatas.What exactly is the purpose behind your request? Then we may be able to help you.Maybe you want to play something at the start of a school assembly and want to stop the chatter?Liszt mephisto waltz comes to mind. Maybe not grand, but distinctive.The last of the Rach etudes op 39 starts dramatic.If you want a challenge, Albeniz Lavapies.The first of the Messiaen Vingt Regards is maybe not so dramatic.
the purpose is a fifteen minute slot opening a large gala concert
what are some romantic piano pieces with grand, exciting openings. none of this dark to light business. i am thinking along the lines of Chopin A-flat polonaise or Schumann Toccata. no extended sonatas