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Erae 2 API Playground App

Hey folks, I'm working on a "Erae Playground" companion App for the Erae 2, to test out the Erae Touch API and demystify the sysex!


At the moment it's a macOS/iPad app (because I wanted to learn some SwiftUI!) but I think there's the possibility of doing a web implementation...

At the moment, you can load scenes, control properties, view live FingerStream data and monitor MIDI data.

I've built a few fun game experiments like Pong, Snake, Conway's Game Of Life, which are all intractable and trigger midi.

If anyone would like to test it out, please let me know if you're on macOS/iPadOS 26 (this is what I'm currently building for!) - or if there's appetite for a web version...

Here's a 
vid of Game of Life into Pigments.

And here's a 
vid of the live Fingerstream info:


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Nice colors there! You might want to make scrolling text in an API zone like I make. 42x24 is tiny!

I'd be happy to test it out!


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Thanks Henry, apologies for the delay, life got in the way!

One thing I wanted to clarify - at the moment all MIDI Output from the ERAE 2 has to be handled by the host application, is that correct? There's no current API (on top of the current SysEx one) to use the built-in MIDI Out ports of the ERAE 2? At the moment, I'm having to create a virtual MIDI output port, from the host App I'm building. 

Are you having to do a similar thing for 
your examples?


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Correct, we don't have a firmware level of  access to the MIDI (and CV) ports on the ERAE 2. 

That means you really need an external device to process the touch info into MIDI , OSC, or other signals. But this is another a bad solution, and you could do it, say, in python running MIDI and sound from a Raspberry Pi or even cheaper devices. 

OTOH, If there were a true multi-dimensional,  multitouch  real time event standard, that would be fantastic.

As a microtonalist, the "Pianoism" of MIDI has been in the way since its beginnings (and I wrote suggestions about  it in the American Festival of Microtonal Music's PITCH magazine back in 1986 -7). 

PS I write / maintain firmware for the microtonal microsynth H-Pi Flash, [ 
https://hpi.zentralzone.com/flash ]

If it could take in USB MIDI, I could get it to run directly from the ERAE's fingerstreams! But it's strictly old school 5-pin DIN. which is a lot slower anyway. 

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