The Yamaha LP-1 pedal unit is a very worthwhile purchase to go with the P125, P515 and DGX670 portable piano models. It bolts on to the optional L-125 / L-515 keyboard stand, has three pedals and is styled to look like the lyre of an acoustic grand piano. The sustain pedal is capable of half-pedalling to give you more control over the damping action, while the other two pedals activate sostenuto and soft.