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Music for an imaginary spooky video game

I've made a little progress with my game, and I'm feeling a little more positive about the gameplay now. Here's evidence
I have about three 'happy sheep ambling about' tunes now, and this is the reason that the game has been sidelined a little. Once I'd started to write music, that's all I wanted to do for a while.

One of the pieces I started writing (there are many) is 'music for an imaginary spooky video game' which has just about made it out of the end of the pipeline. I did start to compose it for three voices with our friend the SID chip in mind, but it grew! This is the full orchestral version, MuseScore is doing a pretty good job of rendering the instruments, but as usual with these things, some instruments suck, particularly the brass.


I've got as far as making a satisfactory version that runs on the C64. This involved quite a bit of programming, I first adapted Derek Morris's sound routine (which he says he's happy for me to do) and I've had fun adding effects such as vibrato and the slide/gliss effect.


That's the 3-voice version running using the Vice emulator. This evening I tried running it on a real C64 and the result wasn't so good.
It ran but didn't sound as it should. Voices would fade away to nothing and then reappear. I don't know whether there's something wrong with the sound routine, something wrong with the SID chip in this '64 or whether something is eating the sound between the '64 and my Mac (a lead goes from the video out to a Tendak, and the audio out from that goes into the mic in of my Mac.)
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