Sustain is a global setting located in the sidebar. When enabled, sustain will hold out the notes in a chord voicing until the next cymatic is played or the stop button is pressed.
When sustain is off, a chord voicing will only play while a cymatic is actively being pressed (or clicked).
⚠️ If sustain is off and the sequencer is enabled – the sequencer will only play while a cymatic is being pressed (or clicked).