Sixteen pads locked to the key you choose, so there is no wrong note — and a four-slot loop station under them that records exactly one lap and never lands off the beat. Every note is placed at its own angle around your head, so a chord fans out across an arc instead of stacking up in the middle. Headphones, and it is a room.
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Every voice has its own HRTF panner and is placed by pitch at the moment it is struck: low notes to your left, high notes to your right and slightly above. Play a spread voicing and you can pick out the inner parts, because they are no longer fighting for the same square inch of skull.
Arming a slot does not start recording — the clock does, at the top of the next lap, and it stops exactly one lap later. The capture window is sample-accurate inside an AudioWorklet, so layers tile without an off-by-one and overdubs sum in place instead of drifting.
Nine scales and all twelve keys. Rows step by a fourth, so a chord shape keeps its shape wherever you move it — the property that makes a grid learnable, and the reason hardware grids have worked this way for fifteen years.
The microphone joins the loop bus with its round-trip latency compensated, so a vocal or an acoustic take lands on the beat rather than a few milliseconds behind it. It feeds the looper without feeding the speakers, which is the difference between a layer and a howl.
Bounce the layers to a seamless one-lap WAV and hand it straight to a deck or to the 8D renderer, where the whole loop can ride an orbit of its own. Or record a take, which captures the performance over the loops rather than the loops alone.
Multi-touch throughout — a chord is four fingers, and sliding across the pads glissandos rather than sticking on the one you started on. Every control clears the 44 px minimum on a touchscreen, and the grid gives up its aspect ratio before it makes you scroll on a landscape phone.
Prefer keys? The piano version is the same instrument with one to three octaves of playable keys instead of pads — every semitone available, with the scale marked on the keys rather than enforced.