This is a Summary.
Ah, now once I hit 1:24 of this song, I knew I'd want to download it.
I for one am especially fond of guitars, more specifically; acoustics, so you get an automatic +4 to your rating on that alone. On top of that, I have really never heard a classical guitar played that well before, and the quality is very good indeed, allow me to compliment your father on his playing.
Violins do sound nice alongside a guitar or two, and you've mixed it in perfectly, staying in tune and on key throughout the entire song, not pushing the guitar away nor being diminished by it. The piano accompanies both instruments nicely as well. The lyrics sung at the end is as effective as a musician could ever hope for, and as a tribute, this is certainly a resounding success, and I applaud you!
I can't really think of anything you could change, and I'd probably have to berate you if you did. ;P
It is with great pleasure that I present to you my rating of 10/10, which I don't feel many people deserve in their work. No offense to anyone, it's just that 10 is 100%, flawless. Music that is perfect is very rare indeed.
Looking forward to more on your part. :)