... block of the guitar preamp Simulation Using Modified Blockwise Method The simulated circuit can also be divided into blocks An example of division into blocks using the modified blockwise method [14] ... and J O Smith, “Numerical methods for simulation of guitar distortion circuits,” Computer Music Journal, vol 32, no 2, pp 23–42, 2008 J Macak and J Schimmel, Real-time guitar tube amplifier simulation ... simulation results using numerical solution and using approximations for a part of a real guitar riff Only the error signals are displayed (d) Figure 9: Comparison between simulation results using...