My steel tongue drum is very calming for me. Eleven notes that are all harmonious. I cannot screw it up. I play number sequences and let the numbers sing to me.

I was playing n^2 - 1 tonight. (2x2)-1, (3x3)-1, (4x4)-1... And I realized there is an infinite number of patterns! Adjust a number, change subtraction to something else. I will never play all the patterns!

This makes me so happy! The numbers will always have new songs to sing!