This means that unlike a fully modular system, it has a hard-wired (or normaled) signal path and will play without the use of patch cables.

Through patching, the musician can add on, or override the hard-wired signal path, extending the possible sound palette of the synthesizer.

[5] The keyboard section of the synth includes 32 full-size keys, pitch and modulation wheels, a glide (portamento) knob, and buttons to control playback of the built-in arpeggiator/sequencer.

To remember created sounds, templates are included in the manual and in pdf format where the musician can draw the patches for later use.

The synthesizer is capable of producing multi-harmonic sounds[6] and modulation..[7] https://www.moogmusic.com/products/semi-modular/grandmother#specs-tab