Oceanside Classical Concerts’ president and artistic director, David Douglas has two main passions. Music and aviation. “I have a life long love of classical music. I was brought up in a house where my mother played the piano and sang, and received awards for some of the stuff she did,” Douglas tells Oasis Magazine. Born in the United Kingdom, Douglas spent 41 years of his life as a commercial airline pilot with Air Canada, Canadian Airlines and others. He’s got more than 23,000 hours of flying experience to his credit ­— many of them as a captain -— and he’s…