THE C/LL tPOST, S/TURCAW illiam Appling Makes Pops DebutGeorge Gershwin, the firstAmerican com poser to take jazz Idioms and transplant them successfully to the concertwill be ssluted by Conductor Louis Lane and The Cleveland Summer Orchestra on Saturday evening, Aug. 11 at 8:30in the Public Auditorium.Among the instrumental treats to be presented is the'Phapsody in Blue.Cleveland'sgifted William Appling will make his 'Tops bow as piano soloist in this sparkling work. Mr.Lane and the Orchestra willopen the Gershwin gala with the overture to ‘T)f Thee 1 Sing,'* followed by the saucy and sometimes strident salute toFrance's first city, An American In Psris.Prior to the second-haIf performance of Porgy and Bess, Miss Jackson and Mr. Boatwright will be heard in song selection* that have ridden the crest of many 'Hit Parad« s:'S Wonderful, 'Love Walked In, Bidin* My Time,** The Man 1 Love and '*F.m-braceable You.**'Porgy and Bessis one of thehigh spots of Gershwin Night. Starring in a concert version will be two internationally acclaimed American singers. Bass-Baritone McHenry Boatwright is making his Cleveland 'Pops’* debut as Porgy. Soprano Rhea Jackson, who earned praise in the same role here two summers ago, personifies Bess. The ‘Pops'* Chorus also will be on hand to lend an artful vocal backdrop.This program is the second of two 1962 ‘Pops'* Concerts observing the 25th anniversary of Gershwin's death. The composer's melodies — whether sweet, sassy or sad — are still close to the hearts of listeners throughout the world. Porgy, Bess and Catfish Row have even been whisked behind the Iron Curtain: last year in Moscow, the Russians presented an unauthorized version of Gersh-