Clearly for this to work the keyboard or synthesizer must be able to play more than one instrument at a time - it must be 'multi-timbrel'. Most modern keyboards are - even if it's not obvious from the controls. Please see [//boxofstops.com/howitworks-action this page] on the main website for a bit more detail on this topic.
[[File:Stop-church-organ.png|border]]
== Adding a stop ==