Your browser does not support grid, so will not be supported. Hover over your browser version to see if there is a way to enable potential support. Sorry, I am no longer able to justify working on making the layout work on older devices.
Please Forgive. This is only a work in progress, so the shading is not very far along. I hope to finish it soon, but I wanted to share this to see what you think. I do not own spiritsong or aika kazumi.