What is the name of a variant of Guitar, which is played by hands and Legs controls string tension?

Its an instrument which is similar to Guitar, appears like guitar kept on a table. But this has an added control over string tension. There are paddles which controls the tension of Guitar strings internally.





In ';How they do it'; of Discovery Channel, they had shows the making of this music instrument but I forgot the name.





Can somebody find its name? I think its basically from Caribbean.What is the name of a variant of Guitar, which is played by hands and Legs controls string tension?
That's called a pedal steel guitar, and I love that ';How it's Made'; show too!What is the name of a variant of Guitar, which is played by hands and Legs controls string tension?
Do you mean a pedal steel guitar?