Michael by E.F. Benson

One close thundery morning about a week later, Michael was sitting at his piano in his shirtsleeves, busy practising. He was aware that at the other end of the room the telephone was calling for him, but it seemed to be of far greater importance at the minute to finish the last page of one of the Bach fugues, than to attend to what anybody else might have to say to him. Then it suddenly flashed across him that it might be Sylvia who wanted to speak to him, or that there might be news about his mother, and his fingers leaped from the piano in the middle of a bar, and he ran and slid across the parquet floor.

But it was neither of these, and compared to them it was a case of "only" Hermann who wanted to see him. But Hermann, it appeared, wanted to see him urgently, and, if he was in (which he was) would be with him in ten minutes.