I was aware of that theme of mortality in my music since around 2009. The decaying and the disappearance of the piano sound is very much symbolic of life and mortality. It's not sad. I just meditate about it.
I always think about music horizontally and vertically at the same time.
It's all very well to say this or that on Twitter and Facebook, but ultimately, if you are a musician, it is going to carry more weight if you make your statements through your craft.
I've worked with the same Prophet 5 Synthesizer by Sequential Circuit synthesiser for 40 years.
I'm a terrible drummer; I almost cannot play the guitar nor sax nor trumpet.
My interests are moving toward both 'sound and music,' not just 'music.' I have been doing lots of field recordings and also collecting lots of strange sounds.