New Yorkers know that when it comes to getting a healthy dose of Mozart, nothing quite does the trick like Lincoln Center's annual Mostly Mozart Festival, which, true to its name, delivers mostly Mozart (and spawned the obscure yet endearing Jewish children's rip-off, Mostly Matzah). The mostly in that case refers to others works inspired by Mozart that are also performed at the festival. The Targ Ein Kerem Music Center does one better with the Mozart Plus concert. Two Mozart sonatas will be performed by Vera Vaidman on violin and Emanuel Krassovsky on piano. In this case the plus is a sonata by Brahms, who lived in Austria about 100 years before Mozart. The concert is part of the Best of Chamber Music series.