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Maybe this type of adapter would do the trick?

https://catskullelectronics.com/product … nc-adapter

Not sure

Hi! I never used that 3,5mm jack myself actually, so I can't answer that. Scannerboy would be the one to ask, I suppose. I would be interested in hearing the answer though.

Nice

Hi, sure if the code is very small I could probably put it in defMON too, yes. Send me a PM? The interface required is not available to buy anywhere I suppose? (Sorry I haven't checked that new youtube video yet although I should.)

It may also be relevant to say at this point that a new MIDI interface is in production. It uses the user port, and therefore does not collide with the cartridge port (for users of cartridges = most C64 users) or with the serial port (if using the HerMIDI interface). It has full support for both MIDI IN and MIDI OUT, and can be configured to generate NMI interrupts on incoming MIDI data. Furthermore, it can  be configured to filter out incoming MIDI data on certain channels, and it it also possible to configure it to only receive certain types of MIDI messages, to save some headache for the midi parser in the C64 in case a lot of MIDI data is sent that should not be handled by the C64 anyway. While the original defMON probably never will have a very developed type of MIDI support, it will still support MIDI sync IN and MIDI sync out using this new interface. At least that's the plan. (As I said before, MIDI/DIN sync out is already supported using Scannerboy's interface). I am also working on defMON 2 though, and that one will be more explicitly built around the idea of having full (whatever that means) MIDI support — using this particular interface — and it will also support for at least 3 SID chips (e.g. at least 9 channels). I have a prototype of the MIDI interface here, and it works very well. An initial batch of units will probably be produced in the next few months. My role has been to dream up the kind of MIDI interface that I would like to have, and a guy in New Zeeland and another guy in the Netherlands are making those dreams come true for me.

Good work there. I was about to say that SidWizard has some kind of MIDI IN, but I guess that's not for sync'ing but just for entering notes (if even that?), but obviously it was precisely SidWizard that you had modified so you should know I guess. I am not aware of other C64 trackers that are sync'ed from an external clock. Dunno about Messiah though.. maybe that one can do that?

Other than that I guess the closest thing would be things like MIDI Slave and M64 (same name as your tracker?) that act as synth modules for external sequencers, but that do not contain any sequencers themselves.

It would be relatively easy to modify defMON — or any other C64 music editor really — in the same way that you have modified SidWizard, but I am not aware of anyone actually doing it, like you said.

(Otherwise defMON is typically acting as master. If you use the interface that scannerboy created, you can use defMON to send DIN sync and MIDI sync signals to external gear.)

Maybe, yes. I'll give it some more thought.

@Martin: Did I understand correctly? You turned the "Tempo" knob, and managed to find an almost exact match in speed with the C64? ...or was that TD-3 synced to some other MIDI clock or something?

-----8<-----

...and now for something else: The annual bill for the web hosting turned up today, and as usual they raise the price a little bit each year and by now it is actually a non-negligible amount of money. Therefore I am thinking of taking down the defMON wiki. There isn't a lot of content in it anyway, and the content that is there could easily be bundled with the defMON download, and I could use CSDb as the "download site" for defMON. Another option could be to move the wiki to some other server, in case someone happens to have access to a server where the wiki could be hosted.

Any reactions?