When the pianist Adam Tendler received a windfall of cash a few years ago, he chose not to blow it on such ephemeral items as rent and groceries. Instead, he commissioned 16 composers to write short works, and assembled those into a program called Inheritances which he performed at The 92 nd Street Y, New York on Saturday in the collection’s New York premiere. Inheritances is deeply personal for Tendler: the money was an unanticipated bequest from his father, whose death itself was unexpected. Nearly all of the music was tender and gentle; an impression that was formed from both