If you’re of the opinion that 90 degree June days are for the birds, then you should be delighted to join me in celebrating the birthday today of Carl Zeller (1842-1898), the Austrian composer best known for his operetta “Der Vogelhändler,” or “The Bird Seller.” We’ll hear a sampling of his music, alongside that of fellow birthday celebrants Johann Stamitz (1717-1757), founding father of the Mannheim school (it’s actually his baptismal day), and Alfredo Catalani (1854-1893), composer of “La Wally,” which, to my knowledge, is still the only opera to end with an avalanche. If that doesn’t cool you down, I don’t know what will. We’ll have an avalanche of great music from 4 to 7 p.m. EDT, on WWFM – The Classical Network and wwfm.org.