Oct 6 2023 (again)

Try the AVX2 binary first. If that doesn't work, use the SSE42 binary.

Even more random fixes!

• Make updating state less of a cache nightmare (even faster crash points!)
• Fixed black track color bug (for real this time)
• Fix Discord on about dialog
• Fix seeking for the millionth time (I don't know if anyone noticed that it was broken)
• Seeking support for pitch bends and piano override