text: Yo, check it out, I got a model to discuss
  Sachs and Abbas, 1974, they proposed
  A rate-level model, computationally in line
  Let me break it down, just give me some time
  
  First, we got a compressive nonlinearity
  Reflecting basilar-membrane displacement, clarity
  The input-output function, chosen with precision
  Matching current data, that's the right decision
  
  The output's converted, driven discharge rate
  With a saturating nonlinearity, no debate
  Sachs and Abbas used it, back in the day
  And we're sticking to it, in our own way
  
  Fit the model to data, minimize the mean squared
  Error between rate functions, we ain't scared
  Four parameters chosen, for the best fit
  Matching the data, yo, that's legit
  
  This model, it's versatile, it's got range
  From flat saturations to sloping, it's not strange
  But one parameter's key, let me mention
  The 'threshold for compression', pay attention
  
  For fibers with low or medium spontaneous rate
  Same best frequencies, don't you hesitate
  The compression threshold, it stays the same
  About 30 dB above the most sensitive, that's the game
  
  So there you have it, the model's in view
  Sachs and Abbas, we're giving props to you
  With good fits and precision, we're aiming high
  Understanding the rate-level shapes, reaching for the sky