NOF Midi NotePitchLookup

Brief:
Midi Max Effect - Midi Note ID Mapping Device

Device Name: NOF_Midi_NotePitchLookup_Rel07

Author:
Norman Freund

Release:
Rel 08, 2-Nov-2022

Platforms:

Tested and developed with Ableton Live release 11.2.6 Max (Cycling 74) release 8.3.1

1. Description:

The NOF_Midi_NotePitchLookup_Rel7, from now on referred to as “the device”, remaps the incoming midi pitch IDs to outgoing midi pitch IDs according to a user specified mapping. The outgoing midi IDs are reported on the user interface (UI) along with the user defined names for each note. None pitch midi messages are mapped straight through without conversion.

The target application is re-mapping regular grid midi hardware instruments like the Ableton Push2 to a note mapping beyond what is covered by the factory installed mappings by Ableton. There are two broad categories of application: different interval mappings of the equal division of the octave (EDO) EDO12 or when used in conjunction with a micro tuner (such as Ableton Live Mircotuner) for various EDO division layouts. An example of the first category is the Tonnetz Triangle (Perfect 5ths of +7 semi-tones for one column right, and augmented 5th of +8 semi-tones for one row up) using EDO 12 tuning. An example of the second category is EDO 16 tuning with a logical keyboard layout (generally 2x75 cents column spacing, 1x75 cents row spacing) with similarities to a conventional piano keyboard but extended for the extra pitches in between the semi-tones.. Naturally categories one and two can be combined.

The mappings are defined in plain text files and loaded through the device.

There is a companion tool called “NOF_Push2Colour” by Norman Freund which colours the Push2 buttons according to a user specified scheme, which can be used to remind the user of note layouts. See: https://normanfreund.gumroad.com/l/NOF_Push2Colour

Full pdf user manual and example files are provided in the package.

Revision History

1-Nov-2022:

IMPORTANT NOTICE

Rel7 Note pitch transpose options not functioning, work in progress to correct this. In the mean time, please use Rel6. Limitation of Rel6: Continuous controller values do not get passed through, however Ableton Live will still pick these up for direct mapping to other devices.

2-Nov-2022:

Release 08

1. Note pitch transpose options now functioning.
2. Toggle added to note transpose matrix to either accept incoming midi continuous controller values for transpose control or not. Recommendations: ON during playing the device, OFF during play back from Live. See user manual for more details.

17-Nov-2022:

User manual p. 6 updated, sample calculation, some numbers corrected to superscripts (when raised to the power of 2).

20-Nov-2022:

User manual footer corrected.

All example files revised, the updated list:

1. EDO16 tuning
2. EDO12 Tonnetz Triangle tuning
3. EDO12 Variation of a Tonnetz Triangle tuning
4. EDO53 tuning
5. EDO12 8 String Violin tuning

Examples spreadsheet updated with above examples and equations revised for easier tuning to the Ableton Microtuner device.

Examples manual (pdf) added, showing the Push2 tuning schematic and usable ranges.