I've been playing music for many years and was involved in the concert band and jazz band at my high school and I was wondering if it's possible to use the Concert Band "course" as one of my engineering I electives. It wasn't listed as one of the elective courses so I'm not sure if it's possible. Thanks

It may not be possible. Ask one of the engineering academic advisors, specially since its not on the 2014 list: http://www.eng.mcmaster.ca/documents/electives.pdf
Email:[email protected] .ca
They also have drop-in academic advising for incoming level I students. For more info, see:http://www.eng.mcmaster.ca/future/accepted.html

Also, you have to successfully pass an audition. The pre-req for the course is:
"Prerequisite(s): Successful audition required. Auditions are held in the first week of classes in September. Students in Level II and above may have the antirequisite for this course waived if they complete a successful audition. Only 12 units of Ensemble Performance courses will count towards a Music degree."

My friend took it in engineering. It doesn't count as an elective but still counts for ur GPA

Thanks for the clarification.