Thanks for the help, everyone. I bet he's very happy in heaven because he can be with his wife again. He can also see all the great conductors and muscians he performed with during his life again. I'm sure that makes him really happy... he can also play bass again. He couldn't in the last 10 years of his life or so due to bad surgery.
Gem: thank you for your kind words. I'm going to study music for my undergraduate work the year after next, so, as you said is important, I'm going to try hard to carry on with everything he would have wanted me to carry on with. Carrying on his legacy is what needs to and will be done by all his students. And I'm going to try talking more to that excellent teacher at my regular school; he's got a heart of gold! We need more people like that in this world!