Question: history of HP 41c tones

[Ángel Martin]

(02-18-2015 01:09 PM)Gene Wrote:  Does anyone know the thought process behind the HP 41 team's choice of the built-in tone frequencies? It has often seemed so odd to me.

Why not choose frequencies that were actual musical note frequencies for a bit more than an octave? Is the bender not able to drive those? Seems as if that would have made using them much "easier" for music.

Any ideas ?

FWIW, there are a few MCODE functions in the SVROM to play the musical note frquencies "DO, RE, MI, FA, SOL, LA, SI" (i.e. french for C - D- E- F- G- A- B-).
As to why they chose those TONES, my non-informed guess is they were easier to implement?