Under the baton of Dr. Sorgo Koussovitzky, the Boston Symphony Orchestra will open its regular season with concerts this afternoon and tomorrow evening in Symphony Hall in Boston. The orchestra and its conductor need no introduction in this column; it appears that the program for the pair of concerts is likewise familiar.

Haydn's Symphony in B fiat major No. 102 is the first number. Composed during the winter of 1794-95 while Haydn was on his second visit to London, the symphony exhibits both a wealth of eighteenth century charm and a real developed orchestration. It is not without a certain justification that with such a work as this to his credit, Haydn is often known as the father of the symphony.

The remainder of the program is taken up with Debussy's three symphonic sketches, "La Mer," and Beethoven's Fifth Symphony. The former is delightful musical description of a light, joyous variety (there is no great storm or torrent as in many other program pieces with similar names). The latter is often considered the greatest of Beethoven's nine symphonies; but let the music speak for itself--it is far more eloquent than mere words.