SID Factory II is a cross-platform editor for composing music that will work on a Commodore 64. It uses the reSID emulator and is currently in open BETA.
Sourcë Gårrett in the Facebook group had his SF2 crashing in Windows 7. I tried SF2 in another Windows 7 with the same screen resolution as his, so it isn't a general problem.
However, Sourcë later found out that it was the SDL2.dll in build 20200718 that crashed SF2. He tried replacing it with an older, more stable 32-bit version from libsdl.org, and then SF2 worked fine on his computer.
Sourcë Gårrett in the Facebook group had his SF2 crashing in Windows 7. I tried SF2 in another Windows 7 with the same screen resolution as his, so it isn't a general problem.
However, Sourcë later found out that it was the SDL2.dll in build 20200718 that crashed SF2. He tried replacing it with an older, more stable 32-bit version from libsdl.org, and then SF2 worked fine on his computer.