I am really sorry for your loss. The good thing is that you spent a great 13 years with your extra family member. That's 13 years of shared times, experiences, and life that nobody can ever take from you. Always remember the good times.
P.S., Again, really amazing voice. I love it! I am also an aspiring artist, though the songs I do are at the opposite end of the spectrum (Melodic Death Metal lol). However, I can always recognize good music, and you got it!
-DeadI