I'm not really feeling the sorrow bit, I am feeling some nostalgia. Couple problems with the mix -- very sub heavy. Feels boxy in your low mids. Ride cymbal may be too loud.

Piano panning from left to right, as well as that theremin synth sound like they may have too much reverb send on them.

I think I occasionally hear distortion as the song goes on, around 2:00 ish.

I will note that violin synth, if it's a violin, has a pretty weak attack that I feel would have benefited from being moved up some milleseconds. I'm not really sure what else to say on the piece because the mix, melodic content, and other elements all seem to stay very samey. It's not a bad piece, but I'm not really able to feel the musicality in any meaningful way. Feels kind of gridlocked.

For as melancholic as this was supposed to sound, it just didn't sound that sad to me, probably because sad songs usually use silence to their advantage. This is gentle, but too ambient, constant, and also too fast-paced to really capture the mood. Instead it just kind of meanders, and since this is more of a moody piece than a technical one, it ends up becoming stale kind of fast.

I like it. In fact, I might use it for one of my games.