At the special request of Serge Koussevitsky, the Pierian Sodality of 1808 has shifted the date of its harpsichord concert from Tuesday, March 19, to the following day, so that the conductor of the Boston Symphony Orchestra can attend.

Ralph L. Kirkpatrick '30, leading harpsichord artist of the country, will appear as a soloist to play music by Bach on the stringed instrument for which it was written. As conductor Malcolm H. Holmes '28 will wave the baton.

Included in Mr. Kirkpatrick's program will be two concerti, one in F minor and the other in E major.