César Franck was a strangely charismatic outsider. A Belgian abroad, he was required to take French citizenship in order to teach at the Paris Conservatory. A renowned organist, his unexpected genius for composition blossomed late.

His enduring fame rests on a handful of fairly late works. He managed to reinvigorate the French symphonic and chamber music traditions through his use of “cyclic form,” with themes throughout generated from a single motif. He also embraced the symphonic poem. In these regards he certainly bore the influence of Franz Liszt. In turn, he himself became highly influential among a generation of French and Belgian composers.

This Sunday night on “The Lost Chord,” we’ll examine music by two Belgians who fell under his sway.

Armand Marsick, born in 1877, trained as a violinist at the Liège Conservatory, before studying abroad in Nancy with Franck enthusiast Guy Ropartz. Then he moved to Paris, where he studied with another Franckian, Vincent d’Indy. His career led him to Athens, and then Bilbao, where he founded a conservatory and an orchestra. He returned to Liège at the age of 50, settling in to teach and direct the concert society there. He died in 1959. The bulk of Marsick’s compositional output, which consisted of some forty works, was written between the ages of 23 and 37. We’ll enjoy a symphonic poem from 1908, titled “La Source.”

Guillaume Lekeu was born in Verviers in 1870. He studied with Franck in Paris, then, like Marsick, with d’Indy following Franck’s death. Lekeu, unfortunately, is also remarkable for his very short life. He became ill with typhoid fever after consuming contaminated sherbet at a restaurant, and died in 1894, one day after his 24th birthday. Despite his sadly shortened existence, he managed to make important contacts and to write music of considerable promise. At the time of his death, he had already been composing for nine years, from the age of 15. In 1891 he was recipient of a second prize in the celebrated Prix de Rome competition.

In all, Lekeu composed about 50 works. We’ll hear his Violin Sonata from 1892, written for the great Belgian virtuoso Eugene Ysaye, and his Adagio from 1891, originally composed for quartet and string orchestra. The score to the latter bears an epigraph from a poem by Georges Vanor, “The pale flowers of memory.”

I hope you’ll join me for music by these Belgian followers of César Franck. That’s “Franckly Belgian,” this Sunday night at 10:00 EDT, on WWFM – The Classical Network and wwfm.org.