As the leaves begin to consider changing color and the temperatures contemplate adjusting downward, Symphony Joslyn comes to life again this month in a genial concert. Beethoven’s 4th Symphony gets top billing. The least-frequently-heard of his nine has charmed hearers over and over with its many tender moments, humorous passages, song-like elements and energetic rhythms. The concert also features The Passion of Angels a two-harp concerto by Marjan Mozetich, a Canadian composer born in Gorizia, Italy, to Slovenian parents. The soloists are Omaha Symphony principal harpist Mary Bircher and Omaha’s Kathleen Wychulis, principal harpist of the Lincoln Symphony and Boulder Philharmonic. An equally audience-friendly work on the program, likewise performed by Symphony members, is Francis Poulenc’s 1935 Suite Française. Making the most and best of these delights, Music Director Thomas Wilkins is on the podium. Five days later, he conducts the Symphony in more Beethoven, the Symphony No. 7 at the Holland Center.