Bruce,

Thanks for the idea - I'm unable to use a toggle switches (though I'd have loved to have), because this PIC/PCB/Switches are going in a small control box with just 5.5mm headroom inside (just under 1/4"" in old money)....also the control box will affixed to the guitar body with four small adhesive pads - a toggle switch would mean the player would be applying force 'sideways' on the switch (with respect to the control box surface), which could place some stress of the adhesive fixings whereas momentary switches, the force will be down (ie pressing the adhesive pads down).

Kamikaze47,

i'm not a programmer...& this stuff doesn't come naturally to me....but thanks for the example to get me started, I'll see how I can weave that concept into my code over the next day or two.