Home How to quilt Machine quilting Piano Key Sashing Quilting Design Piano Key Sashing Quilting Design Marie Eldredge from Handi Quilter demonstrates two easy ways to use rulers to achieve a piano key sashing. American Patchwork & Quilting Editors March 15, 2018 Advertisement Pin FB More Tweet Email Send Text Message Print Click here to download the free pattern for the Purple Quilt as well as the digital quilting designs.