I noticed, listening to your program, that you have all the notes running into one another without pauses. This seems to make the sound smoother and less jarring, even if its less faithful to the original tune.

All this brings up an interesting question about how to deal with the single channel sound limitation of the Electron.

The speccy version is just nasty! Bad, bad, conversion.

For once, the humble Plus/4 got the better deal with this game. Everything that was wrong with the original C64 game was fixed for the Plus/4 and it played so much better. That's why I'm basing my conversion on the Plus/4 game. Well, that and the fact I'm a bit of a Plus/4 fanboi

The reason for that is that the program you see is the only way I know of to create a tune.
My programming ability is not much greater than what you see in the program.
I never really worked out how to place 'blank notes' in the tune to give the effect of a pause between notes.

I've always been a tad surprised that no-one has come up with a really good way of emulating 2 channel sound on the elk.
The Spectrum would seem to be even more limited than the elk since it seems to stop the entire machine to play each note for the duration of the note and yet I've heard 2 and 3 channel sound including percussion instruments at the same time (Chronos).

BTW, to get a pause note in the sound buffer, just play a note with a volume of 0 for the required duration.

To get more convincing multi-channel sound the frequencies have to be switched quicker. A machine code routine directly manipulating the sound registers could do a better job than the SOUND command with a duration of 1, which to me still sounds a bit like a ringing phone!

There must surely be some games or demos on the Electron that do this? It's an old and well-known technique.

Unfortunately, there's nothing to report since the last update. Haven't had the chance to do any work on it all year. General life stuff getting in the way etc...

It's not abandoned, just postponed until I get more time.