Balcones Heights Jazz Festival celebrates its 25th year: Balcones Heights Jazz Festival celebrates its 25th year: The Balcones Heights Jazz Festival will kick off its 25 th anniversary series Friday at the Wonderland of the Americas amphitheater. The Balcones Heights Jazz Festival will kick off its 25 th anniversary series Friday at the Wonderland of the Americas amphitheater. … [Read more...] about Balcones Heights Jazz Festival celebrates its 25th year