3/30/20 Sheets updated w/ Peak columns fix
I have a few microtonal synths and never fancied the rather arcane installation instructions for Scala on the Mac (XQuartz?) and don’t like involving a computer into my music workflow more than I have to. Plus it’s fun and educational to see all the numbers laid out in front of me. So I created these spreadsheets.
EDO Template (1).ods (48.8 KB)
Ratio Tuning Template (1).ods (36.2 KB)
Shruthi_Tuning (1).ods (51.4 KB)
Shruthi Tuning (example - read only)
Each of these sheets calculates the cents offsets for each note, and then translates that into the format used for entry on each synth. So far, the Peak, DX7 E!, and Minilogue / Minilogue XD / Monologue / Prologue formats are included.
The sheets are pretty straightforward to use. For the EDO sheet there are cells at the bottom to input an A reference tuning and the number of divisions per octave. Right now it’s got a 19 EDO tuning in there.
For the Ratio tunings, you will need to pick a reference tuning, put that in the appropriate cell (cell d72 for A5), copy that value to each cell for that octave, and then double or have it for the octaves above and below. Then enter your ratios for each note. (Or, you could put the same reference value in for every note, and double or have the Numerators of each ratio, but that seems like more work). Check the example tuning - note that the example tuning uses C as the reference, not A, while starting the octave (1:1) at E - just to show that can be done.
The example tuning was derived from Alain Danielou, Music and the Power of Sound .
It should be easy enough to modify the EDO sheet to get non-octave equal division scales, such as Carlos’s Alpha, but I haven’t done that yet.
Putting these in by hand for multiple synths is a bit laborious. For the DX7 E! I have no choice but for the others it should be possible to save the sheet as a CSV and have a parser generate a MTS sysex file. Haven’t tried that yet either.
Regarding the parser - if anyone has documentation for sending tuning files into the Minilogue or the Peak please pass it along! Neither synth accepts an MTS bulk tuning file and I am hoping not to have to install the librarian software for those synths and sniff the packets to find out what’s going on.
Anyway, please comment if you find this interesting. I’ve been feeling rather invisible lately with social distancing.