Until now, you could get more from your pedals by adding a tap tempo footswitch or an expression pedal.Truthfully, what was called an expression pedal was more of a control pedal that would have the exact same effect as turning a knob with your foot. Very handy obviously, but not too creative.
With the introduction of the Spinner, here comes the first expression pedal worthy of the name.
The traditional expression pedal came along because of a simple fact, which is that it’s extremely difficult to change your settings with both hands already busy playing the guitar.
Many of us have already found themselves waiting impatiently for the next silence in the song to finally get a chance to turn a knob.
In those situations, a control pedal is a precious tool, and effect manufacturers have been catering to that demand from the Uni-Vibe and its pedal in 1969 to Line 6’s Helix and its three control pedals.