Here’s the Major Triad (ratios 4:5:6) in natural sandstone:
And here’s the Minor Triad, ratios 10:12:15 in the same material:
They will be 3-D printed on demand for you and can be ordered at my Shapeways.com shop, right here.
Augmented and Diminished triads are coming soon! Here’s a sneak peek at the augmented…