I believe this is one of those heart touching songs that has grown over time with you, evolving more and more into a deeper connection and beautiful expression of the love you hold for your grandfather and your family in general. I am sure the song didn't sound exactly like how it sounds when you first made it, you have definitely nurtured and developed its layered musicality throughout the years and we all are blessed to listen and witness it at its peak form and presentation. I can tell this one means a lot to you, and is so profound and genuine, with every keystroke. A magnificent display of care and affection in melodic form.