Sanderson ACCU-TUNER Instruction Manual Appendix A Concise Step-by-Step Tables of Standard Routines 1. Recalibration in Tune or Stretch Mode: SHIFT, CAL, release CAL, release SHIFT, CENTS up or down to stop lights (if necessary), TUNE. You are at A4, 0.0 cents and calibrated to 440.00 Hz. 2. Recali...