Wow, its been a week and nobody has solve this mystery. Gee, I know every musician in here ain't tone deaf. Then what is the problem? I gave you the first key. What are the other three? And to the musicians who can't figure this out, you should be sat down and work on your ear training. I will check back tomorrow.
PS. Will the real musicians Please stand up. LoL

Have a Bless Day
MrTea