The concert will take place at Eleanor Roosevelt High School Auditorium, 7601 Hanover Parkway, Greenbelt. Call 345-8763 for additional information and directions.

Like many a conductor before him, Frederick Morden, music director and conductor of the Prince George's Symphony, also composes music.

His latest composition entitled DECA will receive its area premiere Saturday at the orchestra's final concert of the 1980-81 season.

Morden's relatives Robert and Mary Lou Suckling of Altoona, Pa., recently commissioned the work. The world premiere took place earlier this month in Altoona.

The title DECA uses one letter from the names of each of the Sucklings' four children. It is also based on the Latin work meaning 10, "a number which plays a significant organizational role in the composition's structure," said Morden. "The expanded percussion piece, (which is 10 minutes long,) utilizes both fast and slow tempi and key or non-key centered pitch relationship."

Morden, completing his third year as music director of "the county's only professional orchestra," has commuted for each series of four rehearsals and one concert performance from Austria, where he is studying and teaching in Vienna. He has seen the symphony's 75 players develop from concert to concert, he says.

Morden and coporgram planner and symphony president Stella Ishee say they hope that an expanded concert series will be possible next season. Enjoying an increase in the sizes of audiences, they hope to send symphony members to play for those in nursing homes, for example, who cannot attended concerts, said Morden.

Plans are now being made for a 4th of July concert at Fort Washington -- with or without the planned fireworks, due to federal cuts in the National Park Service funding that helps the orchestra.

But "the amount we receive is, in my opinion, so minimal that the effects will be marginal," said Morden. "I hope it won't mean fewer performances," added Ishee. "That would be bad for the arts in Prince George's County."

"We are a business, too," Morden said. "If the music we play is not up to par, then the public will not come.Our goal is to provide Prince George's audiences with the best performances of symphonic music available."

Saturday's concert features Baltimore's Peabody Institute faculty member Enrique Graf as soloist in Grieg's Piano Concerto in A Minor and Beethoven's Symphony No. 5 in C Minor.

Hors d'oeuvres of quiche and crepes one hour before each concert have become a tradition for symphony-goers.