As a musician myself, I am highly impressed by the quality of the music you composed!
The way you mix different sounds and instruments together to create an ambiance is incredible!
What does the omega and lambda stand for?
Thank you! (I also answered your comment on the game page)
In the acoustic field, lambda stands for the wavelength. I thought it was just a cool subtle reference to add.
As for the omega symbol, I didn't really think it through. I chose it arbitrarily for the "rebuild" action. I thought I could eventually develop a whole lore around the symbols and their significations in the game's universe.