FROSTBYTE'S 5TH SYMPHONY BY FROSTBYTE OF ARTLINE DESIGNS

5 byte entry for the 8 byte showcase at Lovebyte 2024

Overwrites part of kernal's CHRGET routine and takes advantage of its upcounter,
so basically similar technique to what Viznut did for his 5 byte VIC-20 prod.
See that one here: https://www.pouet.net/prod.php?which=86088

Writes to VIC shadow registers and SID. It took many hours of trial and error
to find the exact write address and code around it to produce somewhat satisfying
(within context) visuals and sound.