Seydel SH10301/PB/D Session Steel Powerbender Harmonica DSESSION STEEL PowerBender a new universal 10 hole diatonic for traditional and modern music styles. The SESSION STEEL PowerBender, is the upgrade to our successful SESSION model is presented with a bold new look and superior technical reliability, excellent playability and a fantastic sound. The PowerBender tuning builds on the best parts of the traditional Richter Tuning, while altering the scale to make the real juicy and important notes much easier