Yes!
I am happy with my catskull "GBA MIDI Synth". This is exactly what I need.
Very robust software, takes a firehose of MIDI without locking up.

It doth sound awesome.

One more general question.
How "in tune" is a game boy? Especially since I see some mods involve over- or under-clocking.
Can I tune this instrument for use with other instruments? Or do you fix it in post?

thanks, I will check it out

This is the price I pay for my education.

Interesting. I have been busy with a bunch of analog design/builds. You know what would be really groovy would be a VST that controls real gameboy hardware. If I could click on a gameboy icon in Ableton and get/set patches and CC, and then save that setup right into my session, that would be yes nifty and keen.
But emulating a gameboy with a VST? Not so much.
I'm going to try to make something like that my hardware, which has a teensy brain.
Huh, I guess that is what I would get if I shelled out the cash for Max For Live. Oooh. Need money fast.

Catskull, I am not unhappy with the teensyboy. I just see it as a means to an end, although the end is artistic so it changes.
I'm just curious as to how other people use this tech. I was born in the 1960s. I'm from the cassette tape generation, but I have no sentimental feelings toward cassette tape. I like the _sound_ of the gameboy, I don't like the gameboy because it has a "retro_sound", but I'm also a hardware person looking for ways of integrating this hardware into my stack.
I guess I will have to come to terms with some things, like "How in-tune is a gameboy, and what do I do it my gameboy is out of tune?".

A couple of questions while I have you on the line: I have a GBA SP, will it work with your GBA MIDI, and would that get me closer to what I want? Also may be interested in the YM2149 Synth. I'm looking for aesthetically interesting alternatives to the "analog VCO" but also want to avoid the rabbit hole of writing dsp code for a teensy.

Questions are similar to above: Are either of these solutions stand-alone, or do I have to load/save settings before I can do anything? If those settings are purely MIDI, that's fine.

Respectfully,
Ben

Hi,
I am testing out my catskull Teensyboy with a Gameboy Original and a GBA SP. Love the sounds.

But, it seems to me that mGB does nothing until I press B. I turn on the power, Gameboy boots, and then, it waits for me to push B.
I also see a similar issue with Nanoloop. It waits for me to press (at least 2 buttons?) before I can use it.

Is it possible to just boot into a running program?
The only thing to like about this technology is the sound.
I don't like the LCD display.
I don't like the form factor.
I don't like anything about the Gameboy at all, except that it makes cool sounds.
Isn't there any way I can avoid having to interact with this thing?

I just want it to be an appliance that responds to MIDI.

Any ideas?

Ben