The 20th season of the College of Charleston's International Piano Series roared to a splendissimo conclusion Tuesday night.

A near-capacity audience gave multiple standing ovations to the 12 pianists who soared through four multiple-keyboard concerti of Bach. Purists might sniff at the use of pianos instead of harpsichords, but the results were musical and dance-like, and occasionally delightful.

The Concerto in C, played by William Villaverde and Fabiana Claure, opened the show. Though there were a few whiffled notes in the opening Allegro, the succeeding Adagio was solid, and the concluding Fuga was appropriately firm and true.

Ghadi Shayban, Steven Keniston and Eunjoo Yun proved a strong team for the Concerto in D minor. The opening and concluding Allegro movements were excellently realized, though the central Alla siciliano was sabotaged by a persisting feedback in the house sound system.

The Concerto in C for three pianos fared less well. Giuliana Contreras, Walter Morales and Enrique Bernardo were less than rhythmically secure in their frequent unison passages and one of the cellos began to experience noticeable intonation problems.

The Concerto in A minor, played by Irina Pevzner, Ciro Fodere, Matthew Parker and Sakura Myers brought the program to a thrilling conclusion, with every detail trim and true.

Lorenzo Muti led the 17-piece string orchestra.