I’ve been beta testing for Starling for months, and I’ve recently had the opportunity to try all of the new faceplates. Meta alone is an incredibly deep module. Explained above by @dailybells it’s a kind of wavetable function generator. I’ve used it as a sound source, complex morphing envelope, and through easter egg mode a step sequencer. I like it particularly as a voice, it has a nice wavetable morph under voltage control, and can output a very unique trapezoidal waveform in a similar vein to mangrove. Patching two voices through A&B also has a intense ring mod/scanning waveshaping effect.
Sync is probably my second favourite in the lineup. It ads curiosity to to an existing voice. It can create harmonic chords, sub-octave basslines, and complex microtonal arps and sequences. It’s perhaps the most mysterious in it’s function, but simply speaking it’s a voice that “syncs” with an input oscillator and modulates itself accordingly. I use it to add a poly-feel or bassline to a single voice.
Gateseq is a euclidean sequencer with built in scanning and mixing. It can take two voice inputs that are output from internal vca/env with internally routed signals from the logic source. It has a number of interesting euclidean tables under voltage control. It’s feel is a bit similar to the Shakmat knights gallop for those familiar. I like being able to mix voices right in the Gateseq, removes a env and vca from my rack.
Scanner is a complex wavefolder/modulator. It can take two inputs from the A&B and modulate each other in a ring mod kind of wave but with a table of modulation you can scan through under voltage control. the wavetable function is 3 dimensional and satisfying complex. There is also a “one bit” surface output used for noise or bizarre gate signals.
I built mine from a partial kit. The DIY version is well documented. Starling has done an incredible job providing extremely detailed build instructions and patching examples. I highly recommend checking out this lineup, it’s excellent for small systems and provides a ton of options/features at a great price.