It reminds me of something but can't put my finger on it lol. Maybe some high-tech lab in an rpg? Needless to say the mood is great and would just as aptly describe bad weather indeed. I think we have similar interests, we should work together sometime
Don't know how SNES savvy you are but the SPC would naturally come out slightly muddled due to a number of compounding reasons. Samples are always stored in BRR which is a lossy compression format, Gaussian Interpolation (gaussan blur is a low pass filter so your highs come out slightly muffled), and to a lesser degree it outputs samples at 32khz, that is the playback rate.
While this isn't exactly accurate think of it like a wooden instrument. Your 48khz output with fast sinc/cubic might be as if you made your "Trackar" out of Alder/Northern Ash with Maple. Bright, clear, strong highs and rich mids but lows are tight and arguable weak/non-resonant with a somewhat grainy sound. The SNES Trackar might have Mahogany & Rosewood, real smooth tone with powerful mid/lows but lacking clarity with highs and may in fact sound muddy in comparison to the other Trackar.