MIDI Starts at C0. Why does Ableton start at C-2?

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arretx
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Joined: Thu Jul 02, 2015 5:29 am

MIDI Starts at C0. Why does Ableton start at C-2?

Post by arretx » Mon Dec 18, 2017 7:59 pm

Until now, I haven't really considered this question, but here's why I have.

OnSong on the iPad maps all MIDI values as they are supposed to be mapped. The lowest octave is 0, the highest is 10. C0 is the lowest possible note value.

In Ableton Live, my key range goes from C -2 through G8. That means when I map C0 to the iPad through a Network MIDI session, the iPad reads it as C2.

Is there a way to reconfigure Ableton to start at C0 on all of the ranges?
MacBook Air | Ableton Live 9.7.5 2017-10-02 | Advance 61 Keybaord w/VIP 3.0 | Launchpad Mini | Scarlett Focusrite 18i8 | iPad Pro / OnSong | Allen & Heath QU-32

stringtapper
Posts: 6302
Joined: Sat Aug 28, 2004 6:21 pm

Re: MIDI Starts at C0. Why does Ableton start at C-2?

Post by stringtapper » Mon Dec 18, 2017 10:38 pm

arretx wrote:Until now, I haven't really considered this question, but here's why I have.

OnSong on the iPad maps all MIDI values as they are supposed to be mapped. The lowest octave is 0, the highest is 10. C0 is the lowest possible note value.

In Ableton Live, my key range goes from C -2 through G8. That means when I map C0 to the iPad through a Network MIDI session, the iPad reads it as C2.

Is there a way to reconfigure Ableton to start at C0 on all of the ranges?
Ableton used a variation on Helmholtz octave designation as opposed to Scientific pitch notation, which is the C0–G9 scheme you're referencing.
Unsound Designer

fishmonkey
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Re: MIDI Starts at C0. Why does Ableton start at C-2?

Post by fishmonkey » Wed Dec 20, 2017 6:43 am

arretx wrote:MIDI values as they are supposed to be mapped.
it's not actually defined in the MIDI standard. the issue is covered on this stunning webpage:

http://www.electronics.dit.ie/staff/tsc ... ctaves.htm

ikeaboy
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Location: Ireland

Re: MIDI Starts at C0. Why does Ableton start at C-2?

Post by ikeaboy » Wed Dec 20, 2017 3:48 pm

fishmonkey wrote:
arretx wrote:MIDI values as they are supposed to be mapped.
it's not actually defined in the MIDI standard. the issue is covered on this stunning webpage:

http://www.electronics.dit.ie/staff/tsc ... ctaves.htm
Ravishing!

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