I have been employed as a machine designer, college professor, astronomer, and software developer. Throughout my life I have been an amateur musician. Software Development: My work in software began when I wrote my first program in 1960. In the years since, I have programmed in many different languages. I am the sole developer of the Early Music Companion app. Music: In high school and college I played trombone and euphonium. After college I took up the recorder and joined various singing groups. In 2008 I discovered the Renaissance trombone (sackbut) and fell in love with its mellow sound. Ever since I have been an avid student of the sackbut, and play at every opportunity.