This is another example of how powerful it has been to receive your survey responses and learn from so many artists all over the world.
After consulting with you, we discovered that the optimal size for Lumatone is 280 keys, which gives each vertical row an equal number of eight keys. So while it has been publicized in some places as 275 and can still be found around the interwebs pictured as a 275 prototype, the final production version has had 280 keys.
