Kurzweil PC1X / PC2X Workstation with 88 Hammer Keys Roland Fantom-Xa / XP-30 Synthesizer Workstration with 61 After-Touch Abailable Soft Keys YAMAHA P-105 Digital Stage Piano with 88 Graded Hammer Standard Keys (Optional) CASIO ST-S400 Portable Synthesizer with 61 Semi-Weighted Soft Keys (Optional)