billybobjobo

This might not be the forum for this. But it's a MAX/MSP project, so I thought I'd start here. Let me know if there's a better place for this!

How do MIDI numbers change with different tunings? They are integers at A=440Hz. Do you add some constant to tune it to say A=432Hz or A=444Hz? If so, how do I calculate it? Or is it not even a linear adjustment?

I've been trying to figure this out and I'm stumped. Thanks for reading!

This might not be the forum for this.  But it's a MAX/MSP project, so I thought I'd start here.  Let me know if there's a better place for this!

How do MIDI numbers change with different tunings?  They are integers at A=440Hz.  Do you add some constant to tune it to say A=432Hz or A=444Hz?  If so, how do I calculate it?  Or is it not even a linear adjustment? 

I've been trying to figure this out and I'm stumped.  Thanks for reading!


midi-numbers-with-a440hz

You can set this with the "base" message to [mtof] and [ftom] objects. Below is a patch which demonstrates this and shows you the math behind it using [expr]:

MIDI numbers with A!=440Hz